878 lines
34 KiB
HTML
878 lines
34 KiB
HTML
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<html lang="en" class="no-js">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<meta name="description" content="Manta Documentation">
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<meta name="author" content="Fischer Moseley">
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<link rel="canonical" href="https://fischermoseley.github.io/manta/getting_started/">
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<link rel="prev" href="../installation/">
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<link rel="next" href="../alternatives/">
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<meta name="generator" content="mkdocs-1.6.1, mkdocs-material-9.5.39">
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<title>Getting Started - Manta Documentation</title>
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<link rel="stylesheet" href="../assets/stylesheets/main.8c3ca2c6.min.css">
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<link rel="stylesheet" href="../assets/stylesheets/palette.06af60db.min.css">
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
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<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,300i,400,400i,700,700i%7CRoboto+Mono:400,400i,700,700i&display=fallback">
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<style>:root{--md-text-font:"Roboto";--md-code-font:"Roboto Mono"}</style>
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<link rel="stylesheet" href="../stylesheets/extra.css">
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<script>__md_scope=new URL("..",location),__md_hash=e=>[...e].reduce(((e,_)=>(e<<5)-e+_.charCodeAt(0)),0),__md_get=(e,_=localStorage,t=__md_scope)=>JSON.parse(_.getItem(t.pathname+"."+e)),__md_set=(e,_,t=localStorage,a=__md_scope)=>{try{t.setItem(a.pathname+"."+e,JSON.stringify(_))}catch(e){}}</script>
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</head>
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<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="indigo">
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<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
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<label class="md-overlay" for="__drawer"></label>
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<div data-md-component="skip">
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<a href="#overview" class="md-skip">
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Skip to content
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<div data-md-component="announce">
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<div data-md-color-scheme="default" data-md-component="outdated" hidden>
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<header class="md-header md-header--shadow" data-md-component="header">
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<nav class="md-header__inner md-grid" aria-label="Header">
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<a href=".." title="Manta Documentation" class="md-header__button md-logo" aria-label="Manta Documentation" data-md-component="logo">
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<img src="../assets/logo_minimal_border.png" alt="logo">
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<label class="md-header__button md-icon" for="__drawer">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3zm0 5h18v2H3zm0 5h18v2H3z"/></svg>
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<div class="md-header__ellipsis">
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<div class="md-header__topic">
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<span class="md-ellipsis">
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Manta Documentation
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<div class="md-header__topic" data-md-component="header-topic">
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<span class="md-ellipsis">
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Getting Started
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<form class="md-header__option" data-md-component="palette">
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<input class="md-option" data-md-color-media="(prefers-color-scheme)" data-md-color-scheme="default" data-md-color-primary="indigo" data-md-color-accent="indigo" aria-label="Switch to light mode" type="radio" name="__palette" id="__palette_0">
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<label class="md-header__button md-icon" title="Switch to light mode" for="__palette_1" hidden>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1M8 13h8v-2H8zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4a5 5 0 0 0 5-5 5 5 0 0 0-5-5"/></svg>
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<input class="md-option" data-md-color-media="(prefers-color-scheme: light)" data-md-color-scheme="default" data-md-color-primary="blue" data-md-color-accent="custom" aria-label="Switch to dark mode" type="radio" name="__palette" id="__palette_1">
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<label class="md-header__button md-icon" title="Switch to dark mode" for="__palette_2" hidden>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h10a5 5 0 0 0 5-5 5 5 0 0 0-5-5m0 8a3 3 0 0 1-3-3 3 3 0 0 1 3-3 3 3 0 0 1 3 3 3 3 0 0 1-3 3"/></svg>
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<input class="md-option" data-md-color-media="(prefers-color-scheme: dark)" data-md-color-scheme="slate" data-md-color-primary="black" data-md-color-accent="custom" aria-label="Switch to system preference" type="radio" name="__palette" id="__palette_2">
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<label class="md-header__button md-icon" title="Switch to system preference" for="__palette_0" hidden>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M17 7H7a5 5 0 0 0-5 5 5 5 0 0 0 5 5h10a5 5 0 0 0 5-5 5 5 0 0 0-5-5M7 15a3 3 0 0 1-3-3 3 3 0 0 1 3-3 3 3 0 0 1 3 3 3 3 0 0 1-3 3"/></svg>
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</form>
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<script>var palette=__md_get("__palette");if(palette&&palette.color){if("(prefers-color-scheme)"===palette.color.media){var media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']");palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent")}for(var[key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}</script>
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<label class="md-header__button md-icon" for="__search">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
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<div class="md-search" data-md-component="search" role="dialog">
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<label class="md-search__overlay" for="__search"></label>
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<form class="md-search__form" name="search">
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<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
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<label class="md-search__icon md-icon" for="__search">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.52 6.52 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5"/></svg>
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11z"/></svg>
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</label>
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<nav class="md-search__options" aria-label="Search">
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<button type="reset" class="md-search__icon md-icon" title="Clear" aria-label="Clear" tabindex="-1">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></svg>
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</button>
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</nav>
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</form>
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<div class="md-search__output">
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<div class="md-search__scrollwrap" tabindex="0" data-md-scrollfix>
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<div class="md-search-result" data-md-component="search-result">
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<div class="md-search-result__meta">
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Initializing search
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</div>
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<ol class="md-search-result__list" role="presentation"></ol>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="md-header__source">
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<a href="https://github.com/fischermoseley/manta/" title="Go to repository" class="md-source" data-md-component="source">
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<div class="md-source__icon md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.6.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81"/></svg>
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</div>
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<div class="md-source__repository">
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fischermoseley/manta
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</div>
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</a>
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</div>
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</nav>
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</header>
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<div class="md-container" data-md-component="container">
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<main class="md-main" data-md-component="main">
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<div class="md-main__inner md-grid">
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<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
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<div class="md-sidebar__scrollwrap">
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<div class="md-sidebar__inner">
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<nav class="md-nav md-nav--primary" aria-label="Navigation" data-md-level="0">
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<label class="md-nav__title" for="__drawer">
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<a href=".." title="Manta Documentation" class="md-nav__button md-logo" aria-label="Manta Documentation" data-md-component="logo">
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<img src="../assets/logo_minimal_border.png" alt="logo">
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</a>
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Manta Documentation
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</label>
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<div class="md-nav__source">
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<a href="https://github.com/fischermoseley/manta/" title="Go to repository" class="md-source" data-md-component="source">
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<div class="md-source__icon md-icon">
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><!--! Font Awesome Free 6.6.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2024 Fonticons, Inc.--><path d="M439.55 236.05 244 40.45a28.87 28.87 0 0 0-40.81 0l-40.66 40.63 51.52 51.52c27.06-9.14 52.68 16.77 43.39 43.68l49.66 49.66c34.23-11.8 61.18 31 35.47 56.69-26.49 26.49-70.21-2.87-56-37.34L240.22 199v121.85c25.3 12.54 22.26 41.85 9.08 55a34.34 34.34 0 0 1-48.55 0c-17.57-17.6-11.07-46.91 11.25-56v-123c-20.8-8.51-24.6-30.74-18.64-45L142.57 101 8.45 235.14a28.86 28.86 0 0 0 0 40.81l195.61 195.6a28.86 28.86 0 0 0 40.8 0l194.69-194.69a28.86 28.86 0 0 0 0-40.81"/></svg>
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</div>
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<div class="md-source__repository">
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fischermoseley/manta
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</div>
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</a>
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</div>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href=".." class="md-nav__link">
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<span class="md-ellipsis">
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Home
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../installation/" class="md-nav__link">
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<span class="md-ellipsis">
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Installation
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</span>
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</a>
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</li>
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<li class="md-nav__item md-nav__item--active">
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<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
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<label class="md-nav__link md-nav__link--active" for="__toc">
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<span class="md-ellipsis">
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Getting Started
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</span>
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<span class="md-nav__icon md-icon"></span>
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</label>
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<a href="./" class="md-nav__link md-nav__link--active">
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<span class="md-ellipsis">
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Getting Started
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</span>
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</a>
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<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
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<label class="md-nav__title" for="__toc">
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<span class="md-nav__icon md-icon"></span>
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Table of contents
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</label>
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="#overview" class="md-nav__link">
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<span class="md-ellipsis">
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Overview
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#example-configuration" class="md-nav__link">
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<span class="md-ellipsis">
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Example Configuration
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="#example-instantiation" class="md-nav__link">
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<span class="md-ellipsis">
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Example Instantiation
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</span>
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item">
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<a href="../alternatives/" class="md-nav__link">
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<span class="md-ellipsis">
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Alternatives
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</span>
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../architecture/" class="md-nav__link">
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<span class="md-ellipsis">
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Architecture
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</span>
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</a>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle md-toggle--indeterminate" type="checkbox" id="__nav_6" >
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<label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="">
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<span class="md-ellipsis">
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Usage
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</span>
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_6">
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<span class="md-nav__icon md-icon"></span>
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Usage
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../io_core/" class="md-nav__link">
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<span class="md-ellipsis">
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IO Core
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</span>
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</a>
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</li>
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<h1>Getting Started</h1>
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<h2 id="overview">Overview</h2>
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<p>To use Manta, you'll need a host machine with a FPGA board connected over UART, or a FPGA board connected to the same network via Ethernet. You'll then:</p>
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<ul>
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<li><em>Specify a set of debug cores you wish to include in your design.</em> This is done by writing a configuration file, typically called <code>manta.yaml</code>. Specifying files in JSON is also supported, as long as the hierarchy in the file is equivalent. Just make sure that your YAML files end in <code>.yaml</code> or <code>.yml</code>, and that JSON files end in <code>.json</code>.</li>
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<li><em>Invoke Manta to generate Verilog from the configuration provided.</em> This is done by running <code>manta gen [config_file] [verilog_file]</code> at the command line, which generates a Verilog file (typically named <code>manta.v</code>) from the provided configuration file. This Verilog file contains a definition for a Verilog module named <code>manta</code>, and all its constituent modules.</li>
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<li><em>Instantiate <code>manta</code> in your design, and connecting it to the logic you'd like to debug.</em> Manta will provide an example instantiation if you run <code>manta inst [config_file]</code>, which you can copy-paste into your source code. You'll connect its ports to the logic you're trying to debug, as well as to whatever interface you're using to communicate with the host. This will be a serial transciever on your development board if you're using UART, or it's RMII PHY if you're using Ethernet.</li>
|
|
<li><em>Build and upload the design to your FPGA using your preferred toolchain.</em></li>
|
|
<li><em>Use the debug core(s) through the Python API or the command line.</em> The functions availble to each core are described in their documentation.</li>
|
|
<li><em>Repeat!</em> As you debug, you'll probably want to change exactly how Manta is configured. This means tweaking the configuration file, regenerating the Verilog module, and so on.</li>
|
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</ul>
|
|
<h2 id="example-configuration">Example Configuration</h2>
|
|
<p>An example config file is provided below. If this file was named <code>manta.yaml</code> then running <code>manta gen manta.yaml manta.v</code> would generate Verilog for a <code>manta</code> module that matched the config file.</p>
|
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<div class="language-yaml highlight"><pre><span></span><code><span id="__span-0-1"><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="nn">---</span>
|
|
</span><span id="__span-0-2"><a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="nt">cores</span><span class="p">:</span>
|
|
</span><span id="__span-0-3"><a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="w"> </span><span class="nt">my_io_core</span><span class="p">:</span>
|
|
</span><span id="__span-0-4"><a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">io</span>
|
|
</span><span id="__span-0-5"><a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a>
|
|
</span><span id="__span-0-6"><a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="w"> </span><span class="nt">inputs</span><span class="p">:</span>
|
|
</span><span id="__span-0-7"><a id="__codelineno-0-7" name="__codelineno-0-7" href="#__codelineno-0-7"></a><span class="w"> </span><span class="nt">probe_0_in</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">6</span>
|
|
</span><span id="__span-0-8"><a id="__codelineno-0-8" name="__codelineno-0-8" href="#__codelineno-0-8"></a><span class="w"> </span><span class="nt">probe_1_in</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">12</span>
|
|
</span><span id="__span-0-9"><a id="__codelineno-0-9" name="__codelineno-0-9" href="#__codelineno-0-9"></a>
|
|
</span><span id="__span-0-10"><a id="__codelineno-0-10" name="__codelineno-0-10" href="#__codelineno-0-10"></a><span class="w"> </span><span class="nt">outputs</span><span class="p">:</span>
|
|
</span><span id="__span-0-11"><a id="__codelineno-0-11" name="__codelineno-0-11" href="#__codelineno-0-11"></a><span class="w"> </span><span class="nt">probe_2_out</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">20</span>
|
|
</span><span id="__span-0-12"><a id="__codelineno-0-12" name="__codelineno-0-12" href="#__codelineno-0-12"></a><span class="w"> </span><span class="nt">probe_3_out</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">1</span>
|
|
</span><span id="__span-0-13"><a id="__codelineno-0-13" name="__codelineno-0-13" href="#__codelineno-0-13"></a>
|
|
</span><span id="__span-0-14"><a id="__codelineno-0-14" name="__codelineno-0-14" href="#__codelineno-0-14"></a><span class="w"> </span><span class="nt">my_logic_analyzer</span><span class="p">:</span>
|
|
</span><span id="__span-0-15"><a id="__codelineno-0-15" name="__codelineno-0-15" href="#__codelineno-0-15"></a><span class="w"> </span><span class="nt">type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">logic_analyzer</span>
|
|
</span><span id="__span-0-16"><a id="__codelineno-0-16" name="__codelineno-0-16" href="#__codelineno-0-16"></a><span class="w"> </span><span class="nt">sample_depth</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">4096</span>
|
|
</span><span id="__span-0-17"><a id="__codelineno-0-17" name="__codelineno-0-17" href="#__codelineno-0-17"></a><span class="w"> </span><span class="nt">trigger_location</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">1000</span>
|
|
</span><span id="__span-0-18"><a id="__codelineno-0-18" name="__codelineno-0-18" href="#__codelineno-0-18"></a>
|
|
</span><span id="__span-0-19"><a id="__codelineno-0-19" name="__codelineno-0-19" href="#__codelineno-0-19"></a><span class="w"> </span><span class="nt">probes</span><span class="p">:</span>
|
|
</span><span id="__span-0-20"><a id="__codelineno-0-20" name="__codelineno-0-20" href="#__codelineno-0-20"></a><span class="w"> </span><span class="nt">larry</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">1</span>
|
|
</span><span id="__span-0-21"><a id="__codelineno-0-21" name="__codelineno-0-21" href="#__codelineno-0-21"></a><span class="w"> </span><span class="nt">curly</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">3</span>
|
|
</span><span id="__span-0-22"><a id="__codelineno-0-22" name="__codelineno-0-22" href="#__codelineno-0-22"></a><span class="w"> </span><span class="nt">moe</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">9</span>
|
|
</span><span id="__span-0-23"><a id="__codelineno-0-23" name="__codelineno-0-23" href="#__codelineno-0-23"></a>
|
|
</span><span id="__span-0-24"><a id="__codelineno-0-24" name="__codelineno-0-24" href="#__codelineno-0-24"></a><span class="w"> </span><span class="nt">triggers</span><span class="p">:</span>
|
|
</span><span id="__span-0-25"><a id="__codelineno-0-25" name="__codelineno-0-25" href="#__codelineno-0-25"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">moe RISING</span>
|
|
</span><span id="__span-0-26"><a id="__codelineno-0-26" name="__codelineno-0-26" href="#__codelineno-0-26"></a><span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">curly FALLING</span>
|
|
</span><span id="__span-0-27"><a id="__codelineno-0-27" name="__codelineno-0-27" href="#__codelineno-0-27"></a>
|
|
</span><span id="__span-0-28"><a id="__codelineno-0-28" name="__codelineno-0-28" href="#__codelineno-0-28"></a><span class="nt">uart</span><span class="p">:</span>
|
|
</span><span id="__span-0-29"><a id="__codelineno-0-29" name="__codelineno-0-29" href="#__codelineno-0-29"></a><span class="w"> </span><span class="nt">port</span><span class="p">:</span><span class="w"> </span><span class="s">"auto"</span>
|
|
</span><span id="__span-0-30"><a id="__codelineno-0-30" name="__codelineno-0-30" href="#__codelineno-0-30"></a><span class="w"> </span><span class="nt">baudrate</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">3000000</span>
|
|
</span><span id="__span-0-31"><a id="__codelineno-0-31" name="__codelineno-0-31" href="#__codelineno-0-31"></a><span class="w"> </span><span class="nt">clock_freq</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">100000000</span>
|
|
</span></code></pre></div>
|
|
<p>Although it's just an example, this config file shows the two things every Manta configuration needs, namely:</p>
|
|
<ul>
|
|
<li>
|
|
<p><strong><em>Cores</em></strong>: A list of the debug cores Manta should place on your FPGA. The behavior and configuration of the cores is described in more detail on their documentation pages, but this list contains each core you'd like included in your <code>manta</code> module. This list can have as many entires as your FPGA can support, so long as Manta can address them all. If it can't, it'll throw an error when it tries to generate Verilog.</p>
|
|
</li>
|
|
<li>
|
|
<p><strong><em>Interface</em></strong>: The way data gets on and off the FPGA. At present, Manta only supports UART and Ethernet interfaces. These are described in more detail on their documentation pages, but the interface of choice is specified with either a <code>uart</code> or <code>ethernet</code> at the end of the configuration file.</p>
|
|
</li>
|
|
</ul>
|
|
<p>This Manta instance has an IO Core and a Logic Analyzer, each containing a number of probes at variable widths. The Manta module itself is provided a 100MHz clock, and communicates with the host over UART running at 3Mbaud. This is just an example, and more details are available in the documentation page for each core.</p>
|
|
<h2 id="example-instantiation">Example Instantiation</h2>
|
|
<p>Lastly, we Manta can automatically generate a copy-pasteable Verilog snippet to instantiate Manta in your design by running <code>manta inst [config_file]</code>. For example, the following snippet is generated for the configuration above:</p>
|
|
<div class="admonition note">
|
|
<p class="admonition-title">Reset is active high!</p>
|
|
<p>The Manta instance will reset while <code>rst</code> is held high. If you want to share reset logic with an active low reset signal (for example, <code>rst_n</code>), be sure to invert it first.</p>
|
|
</div>
|
|
<div class="language-verilog highlight"><pre><span></span><code><span id="__span-1-1"><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="n">manta</span><span class="w"> </span><span class="n">manta_inst</span><span class="w"> </span><span class="p">(</span>
|
|
</span><span id="__span-1-2"><a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a><span class="w"> </span><span class="p">.</span><span class="n">clk</span><span class="p">(</span><span class="n">clk</span><span class="p">),</span>
|
|
</span><span id="__span-1-3"><a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="w"> </span><span class="p">.</span><span class="n">rst</span><span class="p">(</span><span class="n">rst</span><span class="p">),</span>
|
|
</span><span id="__span-1-4"><a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a><span class="w"> </span><span class="p">.</span><span class="n">rx</span><span class="p">(</span><span class="n">rx</span><span class="p">),</span>
|
|
</span><span id="__span-1-5"><a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="w"> </span><span class="p">.</span><span class="n">tx</span><span class="p">(</span><span class="n">tx</span><span class="p">),</span>
|
|
</span><span id="__span-1-6"><a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="w"> </span><span class="p">.</span><span class="n">probe_0_in</span><span class="p">(</span><span class="n">probe_0_in</span><span class="p">),</span>
|
|
</span><span id="__span-1-7"><a id="__codelineno-1-7" name="__codelineno-1-7" href="#__codelineno-1-7"></a><span class="w"> </span><span class="p">.</span><span class="n">probe_1_in</span><span class="p">(</span><span class="n">probe_1_in</span><span class="p">),</span>
|
|
</span><span id="__span-1-8"><a id="__codelineno-1-8" name="__codelineno-1-8" href="#__codelineno-1-8"></a><span class="w"> </span><span class="p">.</span><span class="n">probe_2_out</span><span class="p">(</span><span class="n">probe_2_out</span><span class="p">),</span>
|
|
</span><span id="__span-1-9"><a id="__codelineno-1-9" name="__codelineno-1-9" href="#__codelineno-1-9"></a><span class="w"> </span><span class="p">.</span><span class="n">probe_3_out</span><span class="p">(</span><span class="n">probe_3_out</span><span class="p">),</span>
|
|
</span><span id="__span-1-10"><a id="__codelineno-1-10" name="__codelineno-1-10" href="#__codelineno-1-10"></a><span class="w"> </span><span class="p">.</span><span class="n">larry</span><span class="p">(</span><span class="n">larry</span><span class="p">),</span>
|
|
</span><span id="__span-1-11"><a id="__codelineno-1-11" name="__codelineno-1-11" href="#__codelineno-1-11"></a><span class="w"> </span><span class="p">.</span><span class="n">curly</span><span class="p">(</span><span class="n">curly</span><span class="p">),</span>
|
|
</span><span id="__span-1-12"><a id="__codelineno-1-12" name="__codelineno-1-12" href="#__codelineno-1-12"></a><span class="w"> </span><span class="p">.</span><span class="n">moe</span><span class="p">(</span><span class="n">moe</span><span class="p">));</span>
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</span></code></pre></div>
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