code: def get_username_direct(db1s):
      return (
          db1s[LangChainMode.MY_DATA.value][2]
          if db1s is not None
          else ""
      )
  
file_path: h2ogpt/src/db_utils.py
imports: import uuid
  from enums import LangChainMode
label_desc: Use image node_id 4 for calling a global function with example usage: get_username_direct(db1s) and returns: unknown