tor, or matrix,
 as in 'base [ index ]'.</div>
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<div class="col-first even-row-color class-summary class-summary-tab2"><a href="InterfaceBlock.html" title="class in icyllis.arc3d.compiler.tree">InterfaceBlock</a></div>
<div class="col-last even-row-color class-summary class-summary-tab2">
<div class="block">An interface block declaration <span class="invalid-tag">invalid input: '&amp;'</span> definition, as in:</div>
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<div class="col-first odd-row-color class-summary class-summary-tab2"><a href=