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<h1 class="title">Documentation cap-999999.0a1.0</h1>
<h2 class="author">JMNoble</h2>
<h2 class="date">2023-12-19</h2>
<h2>Concepts:</h2><blockquote>
<p>A <strong>capability</strong> may be something like providing a folder of files, or just a data dictionary, and/or an API</p>
<p><strong>capability handler</strong> - a package/namespace which may provide validation and standardised ways of looking up provider data
registered (or not) using register_capabilityname <capname> <capnamespace></p>
<p><strong>capability provider</strong> - a package which registers as providing one or more capablities.
registered using register_package <pkg> <capabilitylist>
the capabilitylist is a list of 2-element lists where the first element is the capabilityname and the second element is a (possibly empty) dict of data relevant to that capability
A capabilityname may appear multiple times. ie a package may register that it provides the capability with multiple datasets.</p>
</blockquote>
<h2><strong>exists(capname)</strong></h2>
<blockquote>
<p>return a boolean indicating the existence of a capability</p>
<p>Arguments:</p>
<ul>
<li><em>capname</em> - string indicating the name of the capability
</li></ul>
<table class="table">
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<th>Returns: 0</th>
<th>1</th>
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</blockquote>
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