get_back_drill_by_depth# PadstackInstance.get_back_drill_by_depth(from_bottom)# Get the back drill type by depth. Parameters: from_bottomboolWhether to get the back drill type from the bottom. Returns: tuple of (Value, Value)Returns a tuple in this format: (drill_depth, diameter) drill_depth : Drilling depth, may not align with layer. diameter : Drilling diameter.