Function from_pydict 

pub fn from_pydict(
    py: Python<'_>,
    dict: &Py<PyDict>,
) -> PyResult<Option<Params>>

Converts a Python dict to Params.

This is a convenience function that wraps pydict_to_params.

Errors

Returns a PyErr if:

• the dict cannot be serialized to JSON
• the JSON is not a valid object