This data structure is used to hold information on where a plugin is hosted online. It has two forms: a key-value string map and a scalar string.
Map Form
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..describe:: link
**Required.** A URL at which the plugin is found.
..describe:: name
A descriptive name for the URL, which may be used as hyperlink text. If undefined, defaults to an empty string.
Scalar Form
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The scalar form is simply the value of the map form's ``link`` key. Using the scalar form is equivalent to using the map form with an undefined ``name`` key.
