/**
 * Role Enum
 * Defines available user roles in the system
 */
export declare enum RoleEnum {
    ADMIN = "admin",
    VIEWER = "viewer"
}
/**
 * Role Value Object
 * Represents a validated user role
 */
export declare class Role {
    private readonly _value;
    private static readonly VALID_ROLES;
    private constructor();
    get value(): RoleEnum;
    /**
     * Create a Role from a string value
     */
    static create(value: string): Role;
    /**
     * Create an admin role
     */
    static admin(): Role;
    /**
     * Create a viewer role
     */
    static viewer(): Role;
    /**
     * Check if this role is admin
     */
    get isAdmin(): boolean;
    /**
     * Check if this role is viewer
     */
    get isViewer(): boolean;
    equals(other: Role): boolean;
    toString(): string;
}
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