import tensorflow as tf

                        
                    epsilon = 1e-5
                    mean, var = tf.nn.moments(x, [1, 2], keep_dims=True)
                    scale = tf.get_variable('scale',[x.get_shape()[-1]], 
                    initializer=tf.truncated_normal_initializer(mean=1.0, stddev=0.02))
                    offset = tf.get_variable('offset',[x.get_shape()[-1]],initializer=tf.constant_initializer(0.0))
                    out = scale*tf.div(x-mean, tf.sqrt(var+epsilon)) + offset
                    return out
                    
    
