tf.contrib.distributions.Poisson.__init__(lam, validate_args=False, allow_nan_stats=True, name='Poisson')
Construct Poisson distributions.
Args:
lam: Floating point tensor, the rate parameter of the distribution(s). lam must be positive.
validate_args: Boolean, default False. Whether to assert that lam > 0 as well as inputs to pmf computations are non-negative integers. If validate_args is False, then pmf computations might return NaN, but can be evaluated at any real value.
allow_nan_st