import type { InputValues } from "@langchain/core/utils/types";
import { type ParsedFStringNode, PromptTemplate, type PromptTemplateInput, TypedPromptInputValues } from "@langchain/core/prompts";
export type CustomFormatPromptTemplateInput<RunInput extends InputValues> = Omit<PromptTemplateInput<RunInput, string>, "templateFormat"> & {
    customParser: (template: string) => ParsedFStringNode[];
    templateValidator?: (template: string, inputVariables: string[]) => boolean;
    renderer: (template: string, values: InputValues) => string;
};
export declare class CustomFormatPromptTemplate<RunInput extends InputValues = any, PartialVariableName extends string = any> extends PromptTemplate<RunInput, PartialVariableName> {
    static lc_name(): string;
    lc_serializable: boolean;
    templateValidator?: (template: string, inputVariables: string[]) => boolean;
    renderer: (template: string, values: InputValues) => string;
    constructor(input: CustomFormatPromptTemplateInput<RunInput>);
    /**
     * Load prompt template from a template
     */
    static fromTemplate<RunInput extends InputValues = Record<string, any>>(template: string, { customParser, ...rest }: Omit<CustomFormatPromptTemplateInput<RunInput>, "template" | "inputVariables">): CustomFormatPromptTemplate<RunInput extends Symbol ? never : RunInput, 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(values: TypedPromptInputValues<RunInput>): Promise<string>;
}