method Bot.prototype.reactionimport { Bot } from "https://dotland.deno.dev/x/grammy@v1.20.2/mod.ts"; reaction(reaction: MaybeArray<ReactionTypeEmoji["emoji"] | ReactionType>, ...middleware: Array<ReactionMiddleware<C>>): Composer<ReactionContext<C>>Parametersreaction: MaybeArray<ReactionTypeEmoji["emoji"] | ReactionType>...middleware: Array<ReactionMiddleware<C>>ReturnsComposer<ReactionContext<C>>