text: from ..layer_operation import LayerOperation
  import tensorflow as tf
  import re
  
  
  class op_tf_csv_input(LayerOperation):
  
      _attributes = """[]""" # TODO: TO BE DEPRECATED
  
      def compile_time_operation(self, learning_option, cluster):
          pass
  
      def run_time_operation(self, learning_option, cluster):
          """
          define input placeholder for csv input.
          outputs:
              data: data placeholder
              label: label data placeholder
          """
          # TODO: implement
          pass
  
  
  