{
  "authored_message": "AAAAAAABBBCCD",
  "frequencies": {
    "A": 7,
    "B": 3,
    "C": 2,
    "D": 1
  },
  "merge_log": [
    {
      "two_smallest_weights": [
        1,
        2
      ],
      "merged_weight": 3
    },
    {
      "two_smallest_weights": [
        3,
        3
      ],
      "merged_weight": 6
    },
    {
      "two_smallest_weights": [
        6,
        7
      ],
      "merged_weight": 13
    }
  ],
  "tree": {
    "left": {
      "left": {
        "symbol": "B"
      },
      "right": {
        "left": {
          "symbol": "D"
        },
        "right": {
          "symbol": "C"
        }
      }
    },
    "right": {
      "symbol": "A"
    }
  },
  "prefix_free_codes": {
    "B": "00",
    "D": "010",
    "C": "011",
    "A": "1"
  },
  "payload_bits": "1111111000000011011010",
  "payload_bit_count": 22,
  "weighted_path_length": 22,
  "independent_all_binary_partitions_optimal_tree_cost": 22,
  "fixed_two_bit_payload_count": 26,
  "decoded": "AAAAAAABBBCCD",
  "one_symbol_contract": {
    "codes": {
      "Z": "0"
    },
    "decoded": "ZZZZ"
  },
  "empty_frequency_input_rejected": true,
  "unknown_symbol_with_fixed_codebook_rejected": true,
  "empty_payload_with_known_codebook_roundtrip": true,
  "truncated_and_nonbinary_rejected": [
    true,
    true
  ],
  "header_dictionary_padding_and_file_bytes_not_counted": true,
  "actual_audio_or_product_compression": false
}