code: def load_w(dtype):
      """
      Return the function name to load data.
  
      This should be used like this::
  
          code = '%s(ival)' % (load_w(input_type),)
  
      """
      if dtype == "float16":
          return "ga_half2float"
      else:
          return ""
  
imports: from __future__ import absolute_import, print_function, division
label_desc: Use image node_id 2 for calling a global function with example usage: load_w(dtype) and returns: str, str