// @flow
import type { IMessage } from './types'

declare export function isSameDay(
  currentMessage: IMessage,
  diffMessage: IMessage | null | void,
): boolean

declare export function isSameUser(
  currentMessage: IMessage,
  diffMessage: IMessage | null | void,
): boolean

declare export var warning: (...args: any) => void

declare export var error: (...args: any) => void