Registers a flag whose value must be a float.
tf.compat.v1.flags.DEFINE_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.