export interface EventTopicDefinition {
    tag: string;
    name: string;
    description?: string;
    sample?: Record<string, unknown>;
    idempotent?: boolean;
    queueUrls?: Array<{
        env_slug: string;
        url: string;
    }>;
}
export interface ValidatedEventTopic {
    file: string;
    definition: EventTopicDefinition;
}
export interface EventTopicProjectValidation {
    valid: true;
    directory: string;
    topics: ValidatedEventTopic[];
    publisherTopics: string[];
}
export declare function expectedTopicFilename(tag: string): string;
export declare function validateEventTopicDefinition(value: unknown, file?: string): EventTopicDefinition;
export declare function canonicalEventsDirectory(projectRoot?: string): string;
export declare function assertCanonicalTopicFile(file: string, definition: EventTopicDefinition, projectRoot?: string): void;
export declare function readCanonicalTopicFile(file: string, projectRoot?: string): Promise<ValidatedEventTopic>;
export declare function findPublishedTopicTags(projectRoot?: string): Promise<string[]>;
export declare function validateEventTopicsProject(projectRoot?: string, requestedDirectory?: string): Promise<EventTopicProjectValidation>;
export declare function topicBodyForTransport(definition: EventTopicDefinition): Record<string, unknown>;