are handled. Properties were previously only character strings,
which had become cumbersome because properties were being used for
mask hints and bounding boxes, with the necessity of constantly
converting values from string to integer and back, which can cause
a performance impact as well as just being messy. The main difference
to the command is the addition of an optional first keyword argument
for the property type, which can be "string", "integer", "dimension",
or "double". All types except "string" can consist of multiple
values. Multiple values can be specified as separate arguments on
the command line, so that, for example, values of FIXED_BBOX or
MASKHINTS_* no longer need to be quoted. In addition, this completes
the handling of "units" implemented recently, as all properties of
the type "dimension" can be entered in the current units, will display
in the current units, and will scale with the database.
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