import type { AgentRuntime, Memory, UUID } from "@elizaos/core";
export interface KnowledgeServiceLike {
    addKnowledge(options: {
        agentId?: UUID;
        worldId: UUID;
        roomId: UUID;
        entityId: UUID;
        clientDocumentId: UUID;
        contentType: string;
        originalFilename: string;
        content: string;
        metadata?: Record<string, unknown>;
    }): Promise<{
        clientDocumentId: string;
        storedDocumentMemoryId: UUID;
        fragmentCount: number;
    }>;
    getKnowledge(message: Memory, scope?: {
        roomId?: UUID;
        worldId?: UUID;
        entityId?: UUID;
    }): Promise<Array<{
        id: UUID;
        content: {
            text?: string;
        };
        similarity?: number;
        metadata?: Record<string, unknown>;
    }>>;
    getMemories(params: {
        tableName: string;
        roomId?: UUID;
        count?: number;
        offset?: number;
        end?: number;
    }): Promise<Memory[]>;
    countMemories(params: {
        tableName: string;
        roomId?: UUID;
        unique?: boolean;
    }): Promise<number>;
    deleteMemory(memoryId: UUID): Promise<void>;
}
export type KnowledgeLoadFailReason = "timeout" | "runtime_unavailable" | "not_registered";
export interface KnowledgeServiceResult {
    service: KnowledgeServiceLike | null;
    reason?: KnowledgeLoadFailReason;
}
export declare function getKnowledgeTimeoutMs(): number;
export declare function getKnowledgeService(runtime: AgentRuntime | null): Promise<KnowledgeServiceResult>;
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