export type TuiChatInputDelivery = 'next' | 'steer';
export type TuiChatInputStatus = 'queued' | 'running' | 'injecting' | 'completed' | 'cancelled' | 'failed' | 'interrupted' | 'suspended';
export interface TuiChatInput {
    id: string;
    content: string;
    attachments?: unknown[];
    requestedDelivery: TuiChatInputDelivery;
    effectiveDelivery: TuiChatInputDelivery;
    status: TuiChatInputStatus;
    version: number;
    position?: number;
    error?: string;
}
export interface TuiChatInputState {
    conversationId: string;
    revision: number;
    activeRunId?: string;
    activeInputId?: string;
    inputs: TuiChatInput[];
}
export declare function createEmptyChatInputState(conversationId: string): TuiChatInputState;
export declare function isPendingChatInput(input: TuiChatInput): boolean;
export declare function countPendingChatInputs(inputs: readonly TuiChatInput[]): number;
export declare function acceptChatInputState(current: TuiChatInputState, incoming: TuiChatInputState): TuiChatInputState;
export declare function findLastEditableChatInput(state: TuiChatInputState): TuiChatInput | undefined;
export declare function commitDeliveredChatInput(state: TuiChatInputState, content: string): TuiChatInputState;