/**
 * Post an announcement.
 */
export declare const PostAnnouncementContract: import("@contractspec/lib.contracts-spec").OperationSpec<import("@contractspec/lib.schema").SchemaModel<{
    title: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    body: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    audience: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    audienceRole: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: true;
    };
    spaceId: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: true;
    };
    expiresAt: {
        type: import("@contractspec/lib.schema").FieldType<Date, string>;
        isOptional: true;
    };
}>, import("@contractspec/lib.schema").SchemaModel<{
    id: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    title: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    body: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    audience: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: false;
    };
    audienceRole: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: true;
    };
    spaceId: {
        type: import("@contractspec/lib.schema").FieldType<string, string>;
        isOptional: true;
    };
}>, undefined>;