HTTP fetch response object, as gotten from await [["net_utils".fetch|netutils.fetch]](...), or the promise resolving to that (e.g. just [["net_utils".fetch|netutils.fetch]](...)`).
The expected HTTP status (e.g. 201 for Created)
Optionalmessage: { message?: string } = {}Error message shown if the assertion fails.
The fetch response object.
Assert that an HTTP response finished with the given status code.