[−][src]Function lightgbm_sys::LGBM_BoosterGetEvalCounts
pub unsafe extern "C" fn LGBM_BoosterGetEvalCounts(
handle: BoosterHandle,
out_len: *mut c_int
) -> c_int
\brief Get number of evaluation datasets. \param handle Handle of booster \param[out] out_len Total number of evaluation datasets \return 0 when succeed, -1 when failure happens