Function lightgbm_sys::LGBM_BoosterGetPredict

pub unsafe extern "C" fn LGBM_BoosterGetPredict(
    handle: BoosterHandle, 
    data_idx: c_int, 
    out_len: *mut i64, 
    out_result: *mut f64
) -> c_int

\brief Get prediction for training data and validation data. \note You should pre-allocate memory for out_result, its length is equal to num_class * num_data. \param handle Handle of booster \param data_idx Index of data, 0: training data, 1: 1st validation data, 2: 2nd validation data and so on \param[out] out_len Length of output result \param[out] out_result Pointer to array with predictions \return 0 when succeed, -1 when failure happens