text: RELATION_DOES_NOT_EXIST = "Selected relation does not exist."
  MODEL_DOES_NOT_EXIST = "Selected {model} does not exist."
  ITEM_DOES_NOT_EXIST = "The requested item or relation does not exist."
  INVALID_ORDER_PROPERTY = "Selected property for ordering is invalid."
  NO_ITEM_EXISTS = "No {model} exists."
  ITEM_EXISTS = "{item} exists."
  RELATION_EXISTS = "Relation exists."
  VALIDATION_FAILED = "One or more of the required fields is incorrect."
  SERIALIZATION_EXCEPTION = "Serialization exception."
  NON_UNIQUE_PROPERTY = "Provided properties are not unique."
  INVALID_PROPERTIES = "A property is invalid, missing or misspelled."
  BAD_REQUEST = "Bad request."
  REQUIRE_PROPERTY_MISSING = "A required property is missing."
  UPDATE_FAILED = "There was an error updating your desired item."
  DELETE_FAILED = "There was an error deleting the item."
  FEATURE_IS_DISABLED = "The requested feature is disabled."
  