interface Gpx {
  $: Gpx_;
  metadata?: Metadata;
  wpt?: Wpt[];
  rte?: Rte[];
  trk?: Trk[];
  extensions?: Extensions;
}

interface Gpx_ {
  version: '1.1';
  creator: string;
  xmlns: 'http://www.topografix.com/GPX/1/1';
  'xmlns:xsi'?: 'http://www.w3.org/2001/XMLSchema-instance';
  'xsi:schemaLocation'?: string;
  'xmlns:gpxx'?: string;
  'xmlns:wptx1'?: string;
  'xmlns:gpxtpx'?: string;
  'xmlns:dyo'?: 'http://xmlns.dyomedea.com/';
}

interface Metadata {
  name?: string;
  desc?: string;
  author?: string;
  copyright?: string;
  link?: Link[];
  time?: string;
  keywords?: string;
  bounds?: Bounds;
  extensions?: Extensions;
}

interface Bounds {
  $: Bounds_;
}

interface Bounds_ {
  minlat: number;
  minlon: number;
  maxlat: number;
  maxlon: number;
}

interface Extensions {
  'dyo:speed'?: number;
  'dyo:course'?: number;
  'dyo:accuracy'?: number;
  'dyo:batterylevel'?: number;
  'dyo:useragent'?: string;
  'dyo:minZoom'?: number;
}

interface Trk {
  name?: string;
  cmt?: string;
  desc?: string;
  src?: string;
  link?: Link[];
  number?: number;
  type?: string;
  extensions?: Extensions;
  trkseg?: Trkseg[];
}

interface Link {
  $: Link_;
  text?: string;
  type?: string;
}

interface Link_ {
  href: string;
}

interface Trkseg {
  trkpt?: Wpt[];
  extensions?: Extensions;
}

interface Wpt {
  $: Wpt_;
  ele?: number;
  time?: string;
  magvar?: number;
  geoidheight?: number;
  name?: string;
  cmt?: string;
  desc?: string;
  src?: string;
  link?: Link;
  sym?: string;
  type?: string;
  fix?: string;
  sat?: number;
  hdop?: number;
  vdop?: number;
  pdop?: number;
  ageofdgpsdata?: number;
  dgpsid?: number;
  extensions?: Extensions;
}

interface Wpt_ {
  lat: number;
  lon: number;
}

interface Rte {
  name?: string;
  cmt?: string;
  desc?: string;
  src?: string;
  link?: Link[];
  number?: number;
  type?: string;
  extensions?: Extensions;
  rtept?: Wpt[];
}