Class Interval (1.11.2) 

Interval(mapping=None, *, ignore_unknown_fields=False, **kwargs)

Interval of acceptable load amounts.

.. _oneof: https://proto-plus-python.readthedocs.io/en/stable/fields.html#oneofs-mutually-exclusive-fields

Attributes
Name Description
min_ int
A minimum acceptable load. Must be ≥ 0. If they're both specified, min must be ≤ max.
max_ int
A maximum acceptable load. Must be ≥ 0. If unspecified, the maximum load is unrestricted by this message. If they're both specified, min must be ≤ max. This field is a member of oneof_ _max.