import type { ChatMessage } from '../chat/transcript/messages';
import { PromptString } from './prompt-string';
/**
 * Prompt mixins elaborate every prompt presented to the LLM.
 * Add a prompt mixin to prompt for cross-cutting concerns relevant to multiple commands.
 */
export declare class PromptMixin {
    private readonly prompt;
    private static mixins;
    private static defaultMixin;
    /**
     * Prepends all mixins to `humanMessage`. Modifies and returns `humanMessage`.
     * Add hedging prevention prompt to specific models who need this.
     */
    static mixInto(humanMessage: ChatMessage, modelID: string): ChatMessage;
    /**
     * Creates a mixin with the given, fixed prompt to insert.
     */
    constructor(prompt: PromptString);
}
export declare function newPromptMixin(text: PromptString): PromptMixin;
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