code: def number_index_to_char(index_number: int) -> str:
      start_ascii_value = ord("A")
      return chr(start_ascii_value + index_number)
  
file_path: Ciphey/ciphey/basemods/Decoders/multi_tap.py
imports: from typing import Dict, Optional
  from ciphey.iface import Config, Decoder, ParamSpec, T, U, registry
label_desc: Use image node_id 6 for calling the Multi_tap obj's underlying member method code with example usage: obj.number_index_to_char(index_number) and returns: chr