import tensorflow as tf

                                                                           'ftol' : 1.0 * np.finfo(float).eps})        
        
        self.optimizer_Adam = tf.compat.v1.train.AdamOptimizer()
        self.train_op_Adam = self.optimizer_Adam.minimize(self.loss)
        
        init = tf.global_variables_initializer()
        self.sess.run(init)
        
        self.loss_log = []
        
