import tensorflow as tf

            init_w = tf.random_normal_initializer(0., 0.01)
            init_b = tf.constant_initializer(0.01)
            net = tf.layers.dense(s, 500, activation=tf.nn.relu,
                                  kernel_initializer=init_w, bias_initializer=init_b, name='l1', trainable=trainable)
