24 lines
1.6 KiB
TypeScript
24 lines
1.6 KiB
TypeScript
import type { InputValues } from "@langchain/core/utils/types";
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import { type ParsedFStringNode, PromptTemplate, type PromptTemplateInput, TypedPromptInputValues } from "@langchain/core/prompts";
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export type CustomFormatPromptTemplateInput<RunInput extends InputValues> = Omit<PromptTemplateInput<RunInput, string>, "templateFormat"> & {
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customParser: (template: string) => ParsedFStringNode[];
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templateValidator?: (template: string, inputVariables: string[]) => boolean;
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renderer: (template: string, values: InputValues) => string;
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};
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export declare class CustomFormatPromptTemplate<RunInput extends InputValues = any, PartialVariableName extends string = any> extends PromptTemplate<RunInput, PartialVariableName> {
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static lc_name(): string;
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lc_serializable: boolean;
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templateValidator?: (template: string, inputVariables: string[]) => boolean;
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renderer: (template: string, values: InputValues) => string;
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constructor(input: CustomFormatPromptTemplateInput<RunInput>);
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/**
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* Load prompt template from a template
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*/
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static fromTemplate<RunInput extends InputValues = Record<string, any>>(template: string, { customParser, ...rest }: Omit<CustomFormatPromptTemplateInput<RunInput>, "template" | "inputVariables">): CustomFormatPromptTemplate<RunInput extends Symbol ? never : RunInput, any>;
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/**
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* Formats the prompt template with the provided values.
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* @param values The values to be used to format the prompt template.
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* @returns A promise that resolves to a string which is the formatted prompt.
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*/
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format(values: TypedPromptInputValues<RunInput>): Promise<string>;
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}
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