php function for parsing a wp_remote_request into a wp_error

error.php

<?php

	function call() {
	
		$response       = wp_remote_request( $this -> url, $this -> args );
		$code           = wp_remote_retrieve_response_code( $response );
		$first_digit    = $code[0];
		$good_responses = array( 2, 3 ); 
		if( ! in_array( $first_digit, $good_responses ) {
			$body = wp_remote_retrieve_body( $response );
			$out  = new WP_Error( $code, $body );
		} else {
			$out = $response;
		}
		   
		return $out;
	
	}


?>