import type { MessageItem } from "@droppii-org/wasm-client-sdk";
export declare const MEMBER_EVENT_COLLAPSE_MIN = 3;
export declare const isMemberEventMessage: (message?: Partial<MessageItem>) => boolean;
export interface MemberEventRun {
    /** Messages of the run, oldest first. */
    messages: MessageItem[];
    /** The oldest message renders the summary; the others render nothing. */
    isHead: boolean;
}
/**
 * Finds the run of consecutive member events around `message` in a
 * newest-first list. Returns null when the message is not part of a run long
 * enough to collapse.
 */
export declare const getMemberEventRun: (allMessages: MessageItem[], message: MessageItem) => MemberEventRun | null;
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