code: def validate(self, table):
      """
      Perform any checks necessary to verify this computation can run on the
      provided table without errors. This is called by :meth:`.Table.compute`
      before :meth:`run`.
      """
      pass
  
label_desc: Use image node_id 3 for calling the Computation obj's underlying member method code with example usage: obj.validate(table) without return types