**Describe the solution you'd like** C++ implementation of the csp.Struct `from_dict`/`from_json` that have better performance than the current python implementation: https://github.com/Point72/csp/blob/main/csp/impl/struct.py#L250.
Describe the solution you'd like
C++ implementation of the csp.Struct
from_dict/from_jsonthat have better performance than the current python implementation: https://github.com/Point72/csp/blob/main/csp/impl/struct.py#L250.