import Joi from 'joi';
export interface IMigrationHooks {
    should_migrate?: string[];
    should_create_issue?: string[];
    post_checkout?: string[];
    apply?: string[];
    pr_message?: string[];
    [name: string]: string[] | undefined;
}
export interface IMigrationIssues {
    title?: string | number;
    description?: string;
    labels?: string[];
    state?: 'open' | 'closed';
    state_reason?: 'completed' | 'not_planned' | 'reopened' | null;
}
export type MigrationPhase = [keyof IMigrationHooks];
export interface IMigrationSpec {
    id: string;
    title: string;
    adapter: {
        type: string;
        [key: string]: any;
    };
    hooks: IMigrationHooks;
    issues?: IMigrationIssues;
}
export declare function loadSpec(directory: string): IMigrationSpec;
export declare function normalizeSpec(originalSpec: any): IMigrationSpec;
export declare function validateSpec(spec: any): Joi.ValidationResult<any>;