code: def _check_params(length, size):
      _check_size(size)
      if length % size != 0:
          raise error("not a whole number of frames")
  
imports: import math
  import struct
  from ctypes import create_string_buffer
label_desc: Use image node_id 2 for calling a global function with example usage: _check_params(length, size) without return types