code: def _convert_keys_to_name(keys):
      index = []
  
      if len(keys) == 1 and keys[0] == "_id":
          index = "_id_"
      else:
          index = "_".join(f"{k}_1" for k in keys)
  
      return index
  
imports: import copy
  from collections import defaultdict
  from orion.core.io.database import Database, DatabaseError, DuplicateKeyError
  from orion.core.utils.flatten import flatten, unflatten
label_desc: Use image node_id 1 for calling a global function with example usage: _convert_keys_to_name(keys) and returns: index