/// <summary>
/// Gets the GeoJSON-defined "id" property, if present.
/// </summary>
/// <param name="attributes">
/// The <see cref="IAttributesTable"/> to query, or <see langword="null"/>.
/// </param>
/// <param name="id">
/// Receives the "id" value, if present, <see langword="null"/> otherwise.
/// </param>
/// <returns>
/// <see langword="true"/> if the "id" value was present, <see langword="false"/> otherwise.
/// </returns>
public static bool TryGetId(this IAttributesTable attributes, out object id)
{
id = attributes?.GetOptionalValue(IdPropertyName);
return(!(id is null));
}