Function CreateVariable

Creates tf.Variable according to param_config. Args: name: A string, name of the variable. params: A WeightParams specifying the details of how this variable should be constructed and initialized. trainable: Whether or not the variable is trainable. collections: Override the

(name,
                   params,
                   trainable=True,
                   collections=None,
                   default_seed=None,
                   synchronization=tf.VariableSynchronization.AUTO,
                   aggregation=tf.VariableAggregation.NONE)