import { PoolState } from '@balancer-labs/balancer-maths';
import { StableMutableState } from './types';
export declare const STABLE_GAS_COST = 155000;
export declare function isStableMutableState(poolState: any): poolState is StableMutableState;
export declare function getAmplificationParameter(startValue: bigint, endValue: bigint, startTime: bigint, endTime: bigint, timestamp: bigint): bigint;
export declare function ampUpdateStartedEvent(poolState: PoolState, eventData: any): void;
export declare function ampUpdateStoppedEvent(poolState: PoolState, eventData: any): void;