code: def register_scheduler(cls):
      """Register scheduler."""
      SCHEDULER_DICT[cls.alias] = cls.__module__ + ":" + cls.__name__
      return cls
  
imports: import argparse
  from espnet.utils.dynamic_import import dynamic_import
  from espnet.utils.fill_missing_args import fill_missing_args
label_desc: Use image node_id 1 for calling a global function with example usage: register_scheduler(cls) and returns: cls