parse/0: instruction: 18
parse/0:   ingredient: {name: "foo", value: 0, type: 0, properties: ["foo": "literal-string"]}
parse/0:   ingredient: {name: "this is a trace in mu", value: 0, type: 0, properties: ["this is a trace in mu": "literal-string"]}
after-brace/0: recipe main
after-brace/0: trace ...
run/0: instruction main/0
foo/0: this is a trace in mu