delete method
Deletes a student of a course.
This method returns the following error codes: * PERMISSION_DENIED if
the requesting user is not permitted to delete students of this course or
for access errors. * NOT_FOUND if no student of this course has the
requested ID or if the course does not exist.
Request parameters:
courseId - Identifier of the course. This identifier can be either the
Classroom-assigned identifier or an alias.
userId - Identifier of the student to delete. The identifier can be one
of the following: * the numeric identifier for the user * the email
address of the user * the string literal "me", indicating the requesting
user
$fields - Selector specifying which fields to include in a partial
response.
Completes with a Empty.
Completes with a commons.ApiRequestError if the API endpoint returned an error.
If the used http.Client completes with an error when making a REST call,
this method will complete with the same error.
Implementation
async.Future<Empty> delete(
  core.String courseId,
  core.String userId, {
  core.String? $fields,
}) async {
  final queryParams_ = <core.String, core.List<core.String>>{
    if ($fields != null) 'fields': [$fields],
  };
  final url_ = 'v1/courses/' +
      commons.escapeVariable('$courseId') +
      '/students/' +
      commons.escapeVariable('$userId');
  final response_ = await _requester.request(
    url_,
    'DELETE',
    queryParams: queryParams_,
  );
  return Empty.fromJson(response_ as core.Map<core.String, core.dynamic>);
}