function isComplex128( value ) {
	return (
		value instanceof Complex128 ||
		constructorName( value ) === 'Complex128'
	);
}
Tests if a value is a 128-bit complex number.

@param {*} value - value to test
@returns {boolean} boolean indicating if a value is a 128-bit complex number

@example
var Complex128 = require( '@stdlib/complex/float64/ctor' );

var x = new Complex128( 4.0, 2.0 );

var bool = isComplex128( x );
// returns true