Zendesk\API\HttpClient::setHeader PHP Method

public setHeader ( string $key, string $value ) : HttpClient
$key	string	The name of the header to set
$value	string	The value to set in the header
return	HttpClient

    public function setHeader($key, $value)
    {
        $this->headers[$key] = $value;
        return $this;
    }

HttpClient