import type { string_agent_name, string_agent_permanent_id } from '../../types/string_agent_name';
import type { string_url } from '../../types/string_url';
import type { string_url_image } from '../../types/string_url_image';
/**
 * Generates an image for the agent to use as profile image
 *
 * @param agentId - The permanent ID of the agent
 * @returns The placeholder profile image URL for the agent
 *
 * @public exported from `@promptbook/core`
 */
export declare function generatePlaceholderAgentProfileImageUrl(agentIdOrName: string_agent_permanent_id | string_agent_name, agentsServerUrl: URL | string_url): string_url_image;