class_docstr: :param access_key: Credentials access key
  :type access_key: str
  :param secret_key: Credentials secret key
  :type secret_key: str
class_docstr_tok: [":","param","access_key",":","Credentials","access","key",":","type","access_key",":","str",":","param","secret_key",":","Credentials","secret","key",":","type","secret_key",":","str"]
code: def secret_key(self, value):
      if value is None:
          self._property_secret_key = None
          return
  
      self.assert_isinstance(value, "secret_key", six.string_types)
      self._property_secret_key = value
  
imports: from datetime import datetime
  import six
  from dateutil.parser import parse
  from ....backend_api.session import NonStrictDataModel, Request, Response, schema_property
label_desc: Use image node_id 5 for calling the Credentials obj's underlying member method code with example usage: obj.secret_key(value) without return types