/** Role registry and permission checks for GSP. */
/** Application-defined permission bits. */
export declare const Permissions: {
    readonly None: 0;
    readonly SendText: number;
    readonly SendAudio: number;
    readonly SendSignal: number;
    readonly MuteOthers: number;
    readonly AssignRoles: number;
    readonly Invite: number;
    readonly RemoveMembers: number;
    readonly CloseGroup: number;
};
export type Permissions = number;
/** Role definition in {@link RoleRegistry}. */
export interface RoleSpec {
    id: number;
    name: string;
    permissions: Permissions;
}
/** Error thrown by {@link RoleRegistry}. */
export declare class RoleError extends Error {
    constructor(message: string);
}
/**
 * Mapping of role ids to {@link RoleSpec}s plus per-member assignments.
 */
export declare class RoleRegistry {
    private readonly roles;
    private readonly assignments;
    /** Register (or replace) a role. */
    define(spec: RoleSpec): void;
    /** Convenience: define a role from primitive components. */
    defineRole(id: number, name: string, permissions: Permissions): void;
    /** Look up a role by id. */
    role(id: number): RoleSpec | undefined;
    /** Iterate every defined role. */
    allRoles(): Iterable<RoleSpec>;
    /** Assign a role to a member. */
    assign(memberId: number, roleId: number): void;
    /** Role currently assigned to `memberId`, if any. */
    roleOf(memberId: number): RoleSpec | undefined;
    /** Effective permissions of `memberId` (`None` if no role). */
    permissionsOf(memberId: number): Permissions;
    /** Throws {@link RoleError} when the member lacks any bit in `mask`. */
    require(memberId: number, mask: Permissions): void;
    /** `true` when the member carries every bit in `mask`. */
    has(memberId: number, mask: Permissions): boolean;
}
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