docstr: Performs Gzip decoding
code: def decode(self, ctext: T) -> Optional[U]:
      """
      Performs Gzip decoding
      """
      try:
          return zlib.decompress(ctext, 16 + zlib.MAX_WBITS).decode(
              "utf-8"
          )
      except Exception:
          return None
  
file_path: Ciphey/ciphey/basemods/Decoders/gzip.py
imports: import zlib
  from typing import Dict, Optional
  from ciphey.iface import Config, Decoder, ParamSpec, T, U, registry
label_desc: Use image node_id 1 for calling the Gzip obj's underlying member method code with example usage: obj.decode(ctext) and returns: zlib, None