I want the stateful C++ API DenseFeatureExtraction<xpu ::nn extractFeature(const CStateItem<xpu curState…

I want the stateful C++ API DenseFeatureExtraction<xpu ::nn extractFeature(const CStateItem<xpu curState…: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). For example, with characters "我", "爱", "你" , an initial cleared state at position 0, action SEP …

The task

For example, with characters `["我", "爱", "你"]`, an initial cleared state at position 0, action `SEP`, string-feature mode, and `wordNgram = 2`, the feature should contain key characters `["-null-", "-null-", "我"]`, word length `[1]`, and previous words `["-null-", "-null-"]`. After moving that state with `SEP` so the…

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.