# Find the valid credentials
valid_creds = self.api.auth.checkCredentials(creds, 'listnodes', hrn)
# get hrn of the original caller
origin_hrn = options.get('origin_hrn', None)
# Find the valid credentials
valid_creds = self.api.auth.checkCredentials(creds, 'listnodes', hrn)
# get hrn of the original caller
origin_hrn = options.get('origin_hrn', None)