You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: pallet_fast_unstake.rs
    path of file: ./repos/polkadot/runtime/polkadot/src/weights
    
    the code of the file until where you have to start completion: // Copyright (C) Parity Technologies (UK) Ltd.
// This file is part of Polkadot.

// Polkadot is free software: you can redistribute it a
    
	fn on_idle_check(v: u32, b: u32, ) -> Weight {
		// Proof Size summary in bytes:
		//  Measured:  `1411 + b * (48 ±0) + v * (19511 ±0)`
		//  Estimated: `4726 + b * (52 ±0) + v * (21987 ±0)`
		// Minimum execution time: 645_357_000 picoseconds.
		Weight::from_parts(650_793_000, 0)
			.saturating_add(Weight::from_parts(0, 4726))
			// Standard Error: 5_811_859
			.saturating_add(Weight::from_parts(194_264_130, 0).saturating_mul(v.into()))
			// Standard Error: 93_262_882
			.saturating_add(Weight::from_parts(2_905_419_408, 0).saturating_mul(b.into()))
			.saturating_add(T::DbWeight::get().reads(7))
			.saturating_add(T::DbWeight::get().reads((1_u64).saturating_mul(v.into())))
			.saturating_add(T::DbWeight::get().writes(1))
			.saturating_add(Weight::from_parts(0, 52).saturating_mul(b.into()))
			.saturating_add(Weight::from_parts(0, 21987).saturating_mul(v.into()))
	}