code: def _typevar_dim(name):
      """Simple temporary type constructor for typevar as a dim"""
      # Note: Presently no difference between dim and dtype typevar
      return ct.TypeVar(name)
  
file_path: datashader/datashader/datashape/type_symbol_table.py
imports: from __future__ import absolute_import, division, print_function
  import ctypes
  from itertools import chain
  from .None import coretypes
label_desc: Use image node_id 4 for calling a global function with example usage: _typevar_dim(name) and returns: ct