import type { CLIDoors } from '@struktoai/mirage-core/commands/cli/types';
import type { CommandFnResult } from '@struktoai/mirage-core/commands/config';
import type { FlagView } from '@struktoai/mirage-core/commands/spec/index';
import type { ByteSource } from '@struktoai/mirage-core/io/types';
import type { EmailConfig } from '../../../../core/email/config.ts';
import { type Source } from './builder.ts';
/** The command's first operand, or a usage error. */
export declare function firstText(texts: readonly string[], label: string): string;
/**
 * Assembles a message, then sends it or writes its MIME to stdout.
 *
 * Shared by compose, reply and forward: the three differ only in the
 * source message they derive headers from. Without --send the raw RFC
 * 5322 bytes go to stdout, so a composer chain can pick them up.
 */
export declare function route(config: EmailConfig, fl: FlagView, stdin: ByteSource | null, source: Source | null, doors: CLIDoors | undefined): Promise<CommandFnResult>;
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