/// <summary>
/// Sets the <see cref="IPostingsFormatFactory"/> instance used to instantiate
/// <see cref="PostingsFormat"/> subclasses.
/// </summary>
/// <param name="postingsFormatFactory">The new <see cref="IPostingsFormatFactory"/>.</param>
/// <exception cref="ArgumentNullException">The <paramref name="postingsFormatFactory"/> parameter is <c>null</c>.</exception>
public static void SetPostingsFormatFactory(IPostingsFormatFactory postingsFormatFactory)
{
PostingsFormat.postingsFormatFactory = postingsFormatFactory ?? throw new ArgumentNullException(nameof(postingsFormatFactory));
}
