Registers a flag whose value must be a float.

    name, default, help, lower_bound=None, upper_bound=None,
    flag_values=_flagvalues.FLAGS, **args

If lower_bound or upper_bound are set, then this flag must be within the given range.


  • name: str, the flag name.
  • default: float|str|None, the default value of the flag.
  • help: str, the help message.
  • lower_bound: float, min value of the flag.
  • upper_bound: float, max value of the flag.
  • flag_values: FlagValues, the FlagValues instance with which the flag will be registered. This should almost never need to be overridden.
  • **args: dict, the extra keyword args that are passed to DEFINE.