code: def clear_cache():
      """Clear all internal caches"""
      cudf.Scalar._clear_instance_cache()
  
imports: import decimal
  import functools
  import os
  import traceback
  import warnings
  from typing import FrozenSet, Set, Union
  import numpy
  import pandas
  import rmm
  import cudf
  import cudf.api.types
  from cudf.core import column
  from cudf.core.buffer import as_buffer
label_desc: Use image node_id 4 for calling a global function with example usage: clear_cache() without return types