code: def get_type(self):
      return "variable"
  
imports: from abc import ABC, abstractmethod
  import numpy
  import math
  from pandas.api.types import is_numeric_dtype, is_bool_dtype, is_object_dtype
label_desc: Use image node_id 3 for calling the VariableParam obj's underlying member method code with example usage: obj.get_type() and returns: str