import { type AsyncEmbedder, type Embedder, type OpenAIEmbeddingAdapterOptions } from './rag-embedding.js';
import type { RagSemanticEmbedFact, RagSemanticFacts, RagSemanticPipelineFact } from './semantic-validator.js';
export declare const RAG_EMBED_MODEL_LOCAL_HASH = "local-hash-v1";
export declare const RAG_EMBED_MODEL_LOCAL_SEMANTIC = "local-semantic-v1";
export declare const RAG_EMBED_MODEL_OPENAI_TEXT_EMBEDDING_3_SMALL = "openai:text-embedding-3-small";
export declare const RAG_EMBED_MODEL_OPENAI_TEXT_EMBEDDING_3_LARGE = "openai:text-embedding-3-large";
export declare const RAG_SUPPORTED_EMBED_MODELS: readonly ["local-hash-v1", "local-semantic-v1", "openai:text-embedding-3-small", "openai:text-embedding-3-large", "text-embedding-3-small", "text-embedding-3-large"];
export type RagSupportedEmbedModel = (typeof RAG_SUPPORTED_EMBED_MODELS)[number];
export type RagCanonicalEmbedModel = typeof RAG_EMBED_MODEL_LOCAL_HASH | typeof RAG_EMBED_MODEL_LOCAL_SEMANTIC | typeof RAG_EMBED_MODEL_OPENAI_TEXT_EMBEDDING_3_SMALL | typeof RAG_EMBED_MODEL_OPENAI_TEXT_EMBEDDING_3_LARGE;
export interface RagProviderEmbeddingOptions {
    readonly openai?: Omit<OpenAIEmbeddingAdapterOptions, 'model' | 'dims'>;
}
export declare function isSupportedRagEmbedModel(model: string): model is RagSupportedEmbedModel;
export declare function canonicalRagEmbedModel(model: string | undefined): RagCanonicalEmbedModel;
export declare function defaultDimsForRagEmbedModel(model: string): number;
export declare function ragEmbedModelAllowsCustomDims(model: string): boolean;
export declare function resolveSyncRagEmbedderForPipeline(facts: RagSemanticFacts, pipeline: RagSemanticPipelineFact, options?: {
    readonly embedder?: Embedder;
}): Embedder;
export declare function resolveAsyncRagEmbedderForPipeline(facts: RagSemanticFacts, pipeline: RagSemanticPipelineFact, options?: {
    readonly embedder?: AsyncEmbedder;
    readonly providers?: RagProviderEmbeddingOptions;
}): AsyncEmbedder;
export declare function embedFactForPipeline(facts: RagSemanticFacts, pipeline: RagSemanticPipelineFact): RagSemanticEmbedFact | undefined;