code: def read_current_user(username: str = Depends(get_current_username)):
      return {"username": username}
  
imports: import secrets
  from fastapi import Depends, FastAPI, HTTPException, status
  from fastapi.security import HTTPBasic, HTTPBasicCredentials
label_desc: Use image node_id 2 for calling a global function with example usage: read_current_user(username) and returns: dict