python theory_label_generator.py KeyError: 'id'

[SumNeuron]

python theory_label_generator.py --input-file sample_input/sample_input.json --output-file grammars_and_config/output/ruletaker_theory_generator_output_theory1_label.jsonl --input-format current

where sample_input/sample_input.json is

# copy pasted from README.md
sample_input = {
  "json_class": "TheoryAssertionRepresentationWithLabel",
  "theory_statements": [
    "+ ( nice 'Harry' )",
    "[ + ( red X ) ] -> + ( red X )",
    "+ ( big 'Charlie' )",
    "+ ( white 'Erin' )",
    "+ ( green 'Bob' ), [ + ( white X ) , + ( red X ) ] -> + ( nice X )",
    "[ + ( red X ) ] -> + ( cold X )",
    "[ + ( rough X ) ] -> + ( nice X )",
    "[ + ( young X ) ] -> + ( kind X )",
    "[ + ( nice X ) ] -> + ( quiet X )",
    "+ ( blue 'Fiona' )",
    "[ + ( round X ) ] -> + ( young X )",
    "+ ( green 'Erin' )", "+ ( round 'Harry' )",
    "[ + ( nice X ) ] -> + ( green X )",
    "+ ( green 'Gary' )"
  ],
  "assertion_statement": "+ ( kind 'Fiona' )",
  "label": False,
  "exception": None 
}
with open('./sample_input/sample_input.json', 'w') as f:
    json.dump(sample_input, f)

and grammars_and_config/output/ruletaker_theory_generator_output_theory1_label.jsonl is

python theory_generator.py --grammar ./grammars_and_config/grammars/ruletaker_grammar_theory1.txt --config-json ./grammars_and_config/config/ruletaker_theory_generator_config_theory1.json --op-theory-jsonl ./grammars_and_config/output/ruletaker_theory_generator_output_theory1.jsonl

which gives me the error

Traceback (most recent call last):
  File "~/Downloads/ruletaker/theory_label_generator.py", line 640, in <module>
    main()
  File "~/Downloads/ruletaker/theory_label_generator.py", line 629, in main
    run_theorem_prover(
  File "~/Downloads/ruletaker/theory_label_generator.py", line 268, in run_theorem_prover
    instance = TheoryAssertionRepresentationWithLabel.from_json(instance_json)
  File "~/Downloads/ruletaker/common.py", line 681, in from_json
    json_dict["id"],
KeyError: 'id'