feat: update blas/base/ndarray TypeScript declarations

PR-URL: #11854

Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: stdlib-bot <82920195+stdlib-bot@users.noreply.github.com>

Author: stdlib-bot

lib/node_modules/@stdlib/blas/base/ndarray/docs/types/index.d.ts

@@ -35,6 +35,7 @@ import sasum = require( '@stdlib/blas/base/ndarray/sasum' );
 import saxpy = require( '@stdlib/blas/base/ndarray/saxpy' );
 import scopy = require( '@stdlib/blas/base/ndarray/scopy' );
 import sdot = require( '@stdlib/blas/base/ndarray/sdot' );
+import sswap = require( '@stdlib/blas/base/ndarray/sswap' );
 import zaxpy = require( '@stdlib/blas/base/ndarray/zaxpy' );
 import zcopy = require( '@stdlib/blas/base/ndarray/zcopy' );
 
@@ -449,6 +450,34 @@ interface Namespace {
 	*/
 	sdot: typeof sdot;
 
+	/**
+	* Interchanges two one-dimensional single-precision floating-point ndarrays.
+	*
+	* ## Notes
+	*
+	* -   The function expects the following ndarrays:
+	*
+	*     -   first one-dimensional input ndarray.
+	*     -   second one-dimensional input ndarray.
+	*
+	* @param arrays - array-like object containing ndarrays
+	* @returns second input ndarray
+	*
+	* @example
+	* var Float32Vector = require( '@stdlib/ndarray/vector/float32' );
+	*
+	* var x = new Float32Vector( [ 1.0, 2.0, 3.0, 4.0, 5.0 ] );
+	* var y = new Float32Vector( [ 6.0, 7.0, 8.0, 9.0, 10.0 ] );
+	*
+	* var z = ns.sswap( [ x, y ] );
+	* // x => <ndarray>[ 6.0, 7.0, 8.0, 9.0, 10.0 ]
+	* // y => <ndarray>[ 1.0, 2.0, 3.0, 4.0, 5.0 ]
+	*
+	* var bool = ( z === y );
+	* // returns true
+	*/
+	sswap: typeof sswap;
+
 	/**
 	* Multiplies a one-dimensional double-precision complex floating-point ndarray `x` by a constant `alpha` and adds the result to a one-dimensional double-precision complex floating-point ndarray `y`.
 	*