import type { H3Event } from "h3";
export interface WorkspaceIconAuthority {
    identityAuthority: string | null;
    identityId: string | null;
    allowedDomain: string | null;
}
export declare function uploadFederatedWorkspaceIcon(event: H3Event, authority: WorkspaceIconAuthority, email: string, file: {
    data: Uint8Array;
    mimeType: string;
    filename: string;
}): Promise<string>;
export declare function verifyFederatedWorkspaceIconOwner(event: H3Event, authority: WorkspaceIconAuthority, email: string, assetId: string): Promise<boolean>;
export declare function readFederatedWorkspaceIcon(event: H3Event, authority: WorkspaceIconAuthority, email: string, assetId: string): Promise<{
    data: Uint8Array;
    mimeType: string;
} | null>;
export declare function listFederatedWorkspaceIconsForOwner(authority: WorkspaceIconAuthority, email: string): Promise<Array<{
    id: string;
    filename?: string;
}>>;