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Function deserialize_json_with_optional_fields_wrapper

Source 
pub fn deserialize_json_with_optional_fields_wrapper<T>(
    json_value: &Value,
) -> Result<T, Error>
where
    T: DeserializeOwned,
Expand description

Attempt to deserialize json_value into T.
If the top‐level attempt fails, the function looks for a nested "fields" object and tries again.
All paths are heavily traced so we can see exactly where deserialization succeeds or fails.