code: def to_string(self):
      return "type: {0} key: {1} secret: <reducted> profile: {2} region: {3}".format(
          self.type, self.key, self.profile, self.region
      )
  
file_path: studio/studio/credentials/credentials.py
imports: import hashlib
  from typing import Dict
  from studio.util import logs, util
  from studio.storage import storage_setup
label_desc: Use image node_id 12 for calling the Credentials obj's underlying member method code with example usage: obj.to_string() and returns: str