import { KnownEvent, NostrEvent, kinds } from "./event.js";
export declare const ProfileContentSymbol: unique symbol;
export type ProfileContent = {
    /** Nickname or full name of the user */
    name?: string;
    /** @deprecated use name instead */
    username?: string;
    /** An alternative, bigger name with richer characters than `name`. `name` should always be set regardless of the presence of `display_name`. */
    display_name?: string;
    /** @deprecated use display_name instead */
    displayName?: string;
    /** Short bio or description of the user */
    about?: string;
    /** @deprecated use picture instead */
    image?: string;
    /** URL of the profile picture image */
    picture?: string;
    /** URL to a wide (~1024x768) picture to be optionally displayed in the background of a profile screen */
    banner?: string;
    /** A web URL related in any way to the event author */
    website?: string;
    /** A LNURL-based Lightning address in the format `lnurlp://…` */
    lud06?: string;
    /** Lightning address in the format `user@domain.com` (LUD-16 format) */
    lud16?: string;
    /** DNS-based verification identifier in the format `_@domain.com` or `user@domain.com` */
    nip05?: string;
    /** Boolean to clarify that the content is entirely or partially the result of automation, such as with chatbots or newsfeeds */
    bot?: boolean;
    /** Object representing the author's birth date. Each field may be omitted. */
    birthday?: {
        /** Birth year */
        year?: number;
        /** Birth month (1-12) */
        month?: number;
        /** Birth day (1-31) */
        day?: number;
    };
    /** An array of strings representing the author's preferred languages (in order of preference), each in IETF BCP 47 format (e.g., ["en", "ja"], ["es-AR", "en-US"]). The first element is the primary language. */
    languages?: string[];
};
/** Type for validated profile events */
export type ProfileEvent = KnownEvent<kinds.Metadata>;
/** Returns the parsed profile content for a kind 0 event */
export declare function getProfileContent(event: ProfileEvent): ProfileContent;
export declare function getProfileContent(event: NostrEvent): ProfileContent | undefined;
/** Checks if the content of the kind 0 event is valid JSON */
export declare function isValidProfile(profile?: NostrEvent): profile is ProfileEvent;
/** Gets the profile picture from a nostr event or profile content with fallback */
export declare function getProfilePicture(metadata: ProfileContent | NostrEvent | undefined): string | undefined;
export declare function getProfilePicture(metadata: ProfileContent | NostrEvent | undefined, fallback: string): string;
export declare function getProfilePicture(metadata: ProfileContent | NostrEvent | undefined, fallback?: string): string | undefined;
/** Gets the display name from a profile with fallback */
export declare function getDisplayName(metadata: NostrEvent, fallback?: string): string;
export declare function getDisplayName(metadata: undefined): undefined;
export declare function getDisplayName(metadata: ProfileContent | undefined): string | undefined;
export declare function getDisplayName(metadata: ProfileContent | NostrEvent | undefined, fallback: string): string;
export declare function getDisplayName(metadata: ProfileContent | NostrEvent | undefined, fallback?: string): string | undefined;