import { MessageContentComplex } from "../messages/index.js";
import { ImagePromptValue, ImageContent } from "../prompt_values.js";
import type { InputValues, PartialValues } from "../utils/types/index.js";
import { BasePromptTemplate, BasePromptTemplateInput, TypedPromptInputValues } from "./base.js";
import { TemplateFormat } from "./template.js";
/**
 * Inputs to create a {@link ImagePromptTemplate}
 * @augments BasePromptTemplateInput
 */
export interface ImagePromptTemplateInput<RunInput extends InputValues = any, PartialVariableName extends string = any> extends BasePromptTemplateInput<RunInput, PartialVariableName> {
    /**
     * The prompt template
     */
    template: Record<string, unknown>;
    /**
     * The format of the prompt template. Options are 'f-string'
     *
     * @defaultValue 'f-string'
     */
    templateFormat?: TemplateFormat;
    /**
     * Whether or not to try validating the template on initialization
     *
     * @defaultValue `true`
     */
    validateTemplate?: boolean;
    /**
     * Additional fields which should be included inside
     * the message content array if using a complex message
     * content.
     */
    additionalContentFields?: MessageContentComplex;
}
/**
 * An image prompt template for a multimodal model.
 */
export declare class ImagePromptTemplate<RunInput extends InputValues = any, PartialVariableName extends string = any> extends BasePromptTemplate<RunInput, ImagePromptValue, PartialVariableName> {
    static lc_name(): string;
    lc_namespace: string[];
    template: Record<string, unknown>;
    templateFormat: TemplateFormat;
    validateTemplate: boolean;
    /**
     * Additional fields which should be included inside
     * the message content array if using a complex message
     * content.
     */
    additionalContentFields?: MessageContentComplex;
    constructor(input: ImagePromptTemplateInput<RunInput, PartialVariableName>);
    _getPromptType(): "prompt";
    /**
     * Partially applies values to the prompt template.
     * @param values The values to be partially applied to the prompt template.
     * @returns A new instance of ImagePromptTemplate with the partially applied values.
     */
    partial<NewPartialVariableName extends string>(values: PartialValues<NewPartialVariableName>): Promise<ImagePromptTemplate<InputValues<Exclude<Extract<keyof RunInput, string>, NewPartialVariableName>>, any>>;
    /**
     * Formats the prompt template with the provided values.
     * @param values The values to be used to format the prompt template.
     * @returns A promise that resolves to a string which is the formatted prompt.
     */
    format<FormatOutput = ImageContent>(values: TypedPromptInputValues<RunInput>): Promise<FormatOutput>;
    /**
     * Formats the prompt given the input values and returns a formatted
     * prompt value.
     * @param values The input values to format the prompt.
     * @returns A Promise that resolves to a formatted prompt value.
     */
    formatPromptValue(values: TypedPromptInputValues<RunInput>): Promise<ImagePromptValue>;
}