You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: decompressor.rb
    path of file: ./repos/httparty/lib/httparty
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module HTTParty
  
    
    def decompress
      return nil if body.nil?
      return body if encoding.nil? || encoding.strip.empty?

      if supports_encoding?
        decompress_supported_encoding
      else
        nil
      end