public static void RemovesBookFromLibrary(Guid transactionId, Guid libraryId, Guid userId, string title, string author,
string isbn, int publishYear)
{
command =
WhenCommand(new RemoveBookFromLibrary(transactionId, libraryId, userId, title, author, isbn,
publishYear));
command.IsPOSTedTo($"/libraries/{libraryId}/books/remove");
}