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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def stage_import_from_url(self, url, token=None, username=None, password=None, insecure=False):
 """Stage an import from a URL to another CDRouter system. :param url: URL to import as string. :param token: (optional) API token to use as string (may be required if importing from a CDRouter 10+ system). :param username: (optional) API username to use as string (may be required if importing from a CDRouter 10+ system). :param password: (optional) API password to use as string (may be required if importing from a CDRouter 10+ system). :param insecure: (optional) Allow insecure HTTPS connections if bool `True`. :return: :class:`imports.Import <imports.Import>` object """

        schema = ImportSchema()
        resp = self.service.post(self.base,
                                 params={'url': url, 'token': token, 'username': username, 'password': password, 'insecure': insecure})
        return self.service.decode(schema, resp)