tf.compat.v1.flags.validator

A function decorator for defining a flag validator.

tf.compat.v1.flags.validator(
    flag_name,
    message='Flag validation failed',
    flag_values=_flagvalues.FLAGS
)

Registers the decorated function as a validator for flag_name, e.g.::

@flags.validator('foo')
def _CheckFoo(foo):
  ...

See :func:register_validator for the specification of checker function.

flag_name str | FlagHolder, name or holder of the flag to be checked. Positional-only parameter.
message str, error text to be shown to the user if checker returns False. If checker raises flags.ValidationError, message from the raised error will be shown.
flag_values flags.FlagValues, optional FlagValues instance to validate against.

A function decorator that registers its function argument as a validator.

AttributeError Raised when flag_name is not registered as a valid flag name.