code: def _populate_kernel_cache(np_type, k_type):
      if np_type not in _SUPPORTED_TYPES:
          raise ValueError(
              "Datatype {} not found for '{}'".format(np_type, k_type)
          )
  
      if (str(np_type), k_type) in _cupy_kernel_cache:
          return
  
      _cupy_kernel_cache[(str(np_type), k_type)] = _get_function(
          "/filtering/_channelizer.fatbin",
          "_cupy_" + k_type + "_" + str(np_type),
      )
  
file_path: cusignal/python/cusignal/filtering/_channelizer_cuda.py
imports: from ..utils._caches import _cupy_kernel_cache
  from ..utils.helper_tools import _get_function, _get_numSM, _print_atts
label_desc: Use image node_id 1 for calling a global function with example usage: _populate_kernel_cache(np_type, k_type) without return types