feat: update blas/ext/base/ndarray TypeScript declarations

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

@@ -131,6 +131,7 @@ import zoneTo = require( '@stdlib/blas/ext/base/ndarray/zone-to' );
 import zsum = require( '@stdlib/blas/ext/base/ndarray/zsum' );
 import zsumkbn = require( '@stdlib/blas/ext/base/ndarray/zsumkbn' );
 import zunitspace = require( '@stdlib/blas/ext/base/ndarray/zunitspace' );
+import zxpy = require( '@stdlib/blas/ext/base/ndarray/zxpy' );
 import zxsa = require( '@stdlib/blas/ext/base/ndarray/zxsa' );
 import zzeroTo = require( '@stdlib/blas/ext/base/ndarray/zzero-to' );
 
@@ -3199,6 +3200,30 @@ interface Namespace {
 	*/
 	zunitspace: typeof zunitspace;
 
+	/**
+	* Adds elements of a one-dimensional double-precision complex floating-point ndarray to the corresponding elements of a second one-dimensional double-precision complex floating-point ndarray and assigns the results to the second ndarray.
+	*
+	* ## Notes
+	*
+	* -   The function expects the following ndarrays:
+	*
+	*     -   a one-dimensional input ndarray.
+	*     -   a one-dimensional output ndarray.
+	*
+	* @param arrays - array-like object containing ndarrays
+	* @returns output ndarray
+	*
+	* @example
+	* var Complex128Vector = require( '@stdlib/ndarray/vector/complex128' );
+	*
+	* var x = new Complex128Vector( [ 1.0, 2.0, 3.0, -1.0, 0.0, 1.0 ] );
+	* var y = new Complex128Vector( [ 2.0, 1.0, -1.0, 3.0, 4.0, 0.0 ] );
+	*
+	* var out = ns.zxpy( [ x, y ] );
+	* // returns <ndarray>[ <Complex128>[ 3.0, 3.0 ], <Complex128>[ 2.0, 2.0 ], <Complex128>[ 4.0, 1.0 ] ]
+	*/
+	zxpy: typeof zxpy;
+
 	/**
 	* Subtracts a scalar constant from each element in a one-dimensional double-precision complex floating-point ndarray.
 	*