code: def print_char_code(code):
      if code is None:
          return "<EOF>"
  
      if code < 0x007F:
          return json.dumps(chr(code))
  
      return '"\\u%04X"' % code
  
imports: import json
  from ..error import GraphQLSyntaxError
label_desc: Use image node_id 4 for calling a global function with example usage: print_char_code(code) and returns: unknown, str, json