| extension-method
	   extension-method = token
	     token          = 1*<any CHAR except CTLs or separators>
	*/
	return len(method) > 0 && strings.IndexFunc(method, isNotToken) == -1
}

// NewRequest wraps [NewRequestWithContext] using [context.Background].
func NewRequest(method, url string, body io.Reader) (*Request, error) {