feat: add dstructs to namespace

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type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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---

Author: kgryte

Diff for: docs/types/index.d.ts

@@ -30,6 +30,7 @@ import cli = require( '@stdlib/cli' );
 import complex = require( '@stdlib/complex' );
 import constants = require( '@stdlib/constants' );
 import datasets = require( '@stdlib/datasets' );
+import dstructs = require( '@stdlib/dstructs' );
 import error = require( '@stdlib/error' );
 import fs = require( '@stdlib/fs' );
 import iter = require( '@stdlib/iter' );
@@ -111,6 +112,11 @@ interface Namespace {
 	*/
 	datasets: typeof datasets;
 
+	/**
+	* Data structures.
+	*/
+	dstructs: typeof dstructs;
+
 	/**
 	* Errors.
 	*/