inherits from Spy parent class one public method decode(input_file_name, input_directory, output_directory) for this, we will normally call with input_directory = encoded and output_directory = decoded This is NOT a static method, you'll need your instance key Your code should read the input file, decode the string, and write to file A SpyDecoder instance with the same key as SpyEncoder should be able to completely re-construct the original file For decoded file names, use the given input file and write as base name (excluding .enc) and add .dec e.g. encoded/dream.txt.enc should write to decoded/dream.txt.dec

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