code: def pack_return(masked_or_scalar):
      # Blank function to give us something for the typing and
      # lowering to grab onto. Just a dummy function for us to
      # call within kernels that will get replaced later by the
      # lowered implementation
      pass
  
label_desc: Use image node_id 1 for calling a global function with example usage: pack_return(masked_or_scalar) without return types