Creates multivariate standard Normal distribution.

dtype Type of parameter's event.
shape Python list-like representing the parameter's event shape.
name Python str name prepended to any created (or existing) tf.Variables.
trainable Python bool indicating all created tf.Variables should be added to the graph collection GraphKeys.TRAINABLE_VARIABLES.
add_variable_fn tf.get_variable-like callable used to create (or access existing) tf.Variables.

Multivariate standard Normal distribution.