tf.contrib.distributions.Normal.__init__(mu, sigma, validate_args=False, allow_nan_stats=True, name='Normal')
Construct Normal distributions with mean and stddev mu and sigma.
The parameters mu and sigma must be shaped in a way that supports broadcasting (e.g. mu + sigma is a valid operation).
Args:
mu: Floating point tensor, the means of the distribution(s).
sigma: Floating point tensor, the stddevs of the distribution(s). sigma must contain only positive values.
validate_args: Boolean, de