Function LGBM_BoosterNumModelPerIteration 

pub unsafe extern "C" fn LGBM_BoosterNumModelPerIteration(
    handle: BoosterHandle,
    out_tree_per_iteration: *mut c_int,
) -> c_int

Get number of trees per iteration.

Arguments

• handle - Handle of booster
• out_tree_per_iteration (direction out) - Number of trees per iteration

Returns

0 when succeed, -1 when failure happens