def __init__(self, json):
    if json is not None:
      if 'enabled' in json.keys():
        self.enabled = json['enabled']
      else:
        self.enabled = None
      if 'primaryKey' in json.keys():
        self.primary_key = json['primaryKey']
      else:
        self.primary_key = None
      if 'secondaryKey' in json.keys():
        self.secondary_key = json['secondaryKey']
      else:
        self.secondary_key = None
    else:
      raise GalaxyFDSClientException("Json data cannot be None")