import tensorflow as tf

    def __init__(self,name,input_dim,output_dim,k_h=4,k_w=4,d_h=2,d_w=2,
                 stddev=0.02, data_format='NHWC',padding='SAME',epsilon=1e-9) :
        with tf.variable_scope(name) :
            assert data_format == 'NHWC'
