function PpeMetadata(options) {
  //>>includeStart('debug', pragmas.debug);
  Check.typeOf.string("options.source", options.source);
  //>>includeEnd('debug');

  this._min = options.min;
  this._max = options.max;
  this._source = options.source;
}
Metadata related to the stored PPE (Per-Point Error) data.

This reflects the `ppeMetadata` definition of the
{@link https://nsgreg.nga.mil/csmwg.jsp|NGA_gpm_local} glTF extension.

@constructor
@param {PpeMetadata.ConstructorOptions} options An object describing initialization options

@private