function getComplex64( arr, idx ) {
	return arr.get( idx );
}
Returns an element from a `Complex64Array`.

@private
@param {Complex64Array} arr - input array
@param {NonNegativeInteger} idx - element index
@returns {number} element value

@example
var Complex64Array = require( '@stdlib/array/complex64' );
var realf = require( '@stdlib/complex/float32/real' );
var imagf = require( '@stdlib/complex/float32/imag' );

var arr = new Complex64Array( [ 1, 2, 3, 4 ] );

var v = getComplex64( arr, 1 );
// returns <Complex64>

var re = realf( v );
// returns 3.0

var im = imagf( v );
// returns 4.0