public void Test_hr_to_amount()
{
Assert.Equal("50.123456789", ModHelper.Amount_to_hr_string(50123456789));
Assert.Equal("0.000000050", ModHelper.Amount_to_hr_string(50));
Assert.Equal("0.000000001", ModHelper.Amount_to_hr_string(1));
Assert.Equal("500.000000000", ModHelper.Amount_to_hr_string(500_000_000_000));
Assert.Equal("5000000000.000000000", ModHelper.Amount_to_hr_string(5_000_000_000_000_000_000));
}