I want a Float field to display only two digits to the right of the decimal, but to have no constraint on the number of digits to the left of the decimal.

From the documentation[1], `digits`

is:

```
A tuple of two integers. The first integer defines the total of numbers in the integer part. The second integer defines the total of numbers in the decimal part. . . . If digits is None or any values of the tuple is None, no validation on the numbers will be done.
```

When I attempt to place `None`

as the first item in the tuple, server startup fails with the error, `AssertionError: digits must be tuple of integers or PYSON`

.

Is there a way to accomplish my goal? Thanks, in advance, for your advice.