Use parse_type_definition to parse a type definition string into a JSON string.
Use build_type_definition to convert the JSON string back to the type definition string.
Python 3.11.7 (main, Dec 4 2023, 18:10:11) [Clang 15.0.0 (clang-1500.1.0.2.5)] on darwin
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>>> import tstype_py as ts
>>> import json
>>> text = "string|Record<string,Record<number, Array<string | number>>>[][]"
>>> # parse a type definition string into a JSON object
>>> json.loads(ts.parse_type_definition(text))
{'Union': [{'Basic': 'string'}, {'Array': {'Array': {'Map': [{'Basic': 'string'}, {'Map': [{'Basic': 'number'}, {'Array': {'Union': [{'Basic': 'string'}, {'Basic': 'number'}]}}]}]}}}]}
>>> # convert the JSON string back to the type definition string
>>> ts.parse_type_definition(text)
'{"Union":[{"Basic":"string"},{"Array":{"Array":{"Map":[{"Basic":"string"},{"Map":[{"Basic":"number"},{"Array":{"Union":[{"Basic":"string"},{"Basic":"number"}]}}]}]}}}]}'
>>> ts.build_type_definition('{"Union":[{"Basic":"string"},{"Array":{"Array":{"Map":[{"Basic":"string"},{"Map":[{"Basic":"number"},{"Array":{"Union":[{"Basic":"string"},{"Basic":"number"}]}}]}]}}}]}')
'Record<string, Record<number, string | number[]>>[][] | string'