import { FileCapabilities } from './baseLLM.js';
import { BaseModel } from './baseModel.js';
import { ChatMessageContent } from './chat.types.js';
import { EmbedContentParams, EmbedContentResult, EmbedTextParams, EmbedTextResult, EmbedTextsParams, EmbedTextsResult } from './embed.types.js';
/**
 * Base class for all embedding model implementations
 */
export declare abstract class BaseEmbeddings extends BaseModel {
    /**
     * Protected property to store additional provider-specific settings
     */
    protected _additionalSettings: Record<string, any>;
    /**
     * Get the current additional settings
     */
    get AdditionalSettings(): Record<string, any>;
    /**
     * Declares which non-text mime types this provider's embedding model can embed.
     * null = text-only (the default). Multimodal providers override this.
     * Mirrors BaseLLM.GetFileCapabilities().
     */
    GetFileCapabilities(): FileCapabilities | null;
    /**
     * Throws if `content` contains a media block whose mime type the model can't embed.
     * Text-only content always passes. Called by multimodal providers at the top of EmbedContent.
     */
    protected ValidateContentSupported(content: ChatMessageContent): void;
    /** Resolve a block's effective mime: explicit field → data-URL prefix → type-based default. */
    private resolveBlockMimeType;
    /** Wildcard-aware mime match (e.g. 'image/*'), same semantics as ResolveFileInputStrategy. */
    private mimeTypeSupported;
    /**
     * Set additional provider-specific settings
     * Subclasses should override this method to validate required settings
     *
     * @param settings Provider-specific settings
     */
    SetAdditionalSettings(settings: Record<string, any>): void;
    /**
     * Clear all additional settings
     * This is useful for resetting the state of the provider
     * or when switching between different configurations.
     */
    ClearAdditionalSettings(): void;
    abstract EmbedText(params: EmbedTextParams): Promise<EmbedTextResult>;
    abstract EmbedTexts(params: EmbedTextsParams): Promise<EmbedTextsResult>;
    abstract GetEmbeddingModels(): Promise<any>;
    /**
     * Embeds text and/or interleaved media content into a single fused vector.
     *
     * Default behavior: text-only content is delegated to EmbedText;
     * if any non-text block is present, throws — because the base provider can't embed media.
     * Multimodal providers (e.g. GeminiEmbedding2) should override this method.
     */
    EmbedContent(params: EmbedContentParams): Promise<EmbedContentResult>;
}
/**
 * @deprecated Use BaseEmbeddings instead - will be removed in a future release
 */
export declare abstract class Embeddings extends BaseEmbeddings {
}
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