export interface PendingToolMetadata {
    title?: string;
    metadata?: Record<string, unknown>;
    storedAt: number;
}
export declare function createToolMetadataStore(): {
    storeToolMetadata: (sessionID: string, callID: string, input: {
        title?: string;
        metadata?: Record<string, unknown>;
    }) => void;
    consumeToolMetadata: (sessionID: string, callID: string) => PendingToolMetadata | undefined;
    clearPendingStore: () => void;
    getPendingStoreSize: () => number;
};
export type ToolMetadataStore = ReturnType<typeof createToolMetadataStore>;
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