Function SCIPgetBestNode 

pub unsafe extern "C" fn SCIPgetBestNode(
    scip: *mut SCIP,
) -> *mut SCIP_NODE

gets the best node from the tree (child, sibling, or leaf) w.r.t. the node selection strategy

@return the best node from the tree (child, sibling, or leaf) w.r.t. the node selection strategy

@pre This method can be called if @p scip is in one of the following stages: - \ref SCIP_STAGE_SOLVING