code: def get_itervar_type_info(iter_type):
      assert iter_type < len(
          ITERVAR_TYPE_STRING_MAP
      ), "Unknown IterVar type: " + str(iter_type)
      return ITERVAR_TYPE_STRING_MAP[iter_type]
  
imports: import html
  import json
  import warnings
  from graphviz import Digraph
  from graphviz import Source
  import tvm
label_desc: Use image node_id 6 for calling a global function with example usage: get_itervar_type_info(iter_type) and returns: ITERVAR_TYPE_STRING_MAP