protected function _send_patch_request( $url, $body ) {
		$response = $this->_send_request( $url, array(
			'method' => 'PATCH',
			'body'   => $body,
		) );

		$response_code = wp_remote_retrieve_response_code( $response );
		$this->assertEquals( 200, $response_code, 'The Mailtrap.io API resonse code is not equals to 200.' );

		return $response;
	}