code: def join_bytes(bs):
      if len(bs) == 0:
          return ""
      else:
          rv = bs[0]
          for b in bs[1:]:
              rv += b
          return rv
  
file_path: mindsdb/mindsdb/api/mysql/mysql_proxy/external_libs/mysql_scramble.py
imports: import hashlib
  from functools import partial
  import struct
  import io
  import sys
label_desc: Use image node_id 7 for calling a global function with example usage: join_bytes(bs) and returns: str, rv