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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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from abc import abstractmethod
from typing import Union
[docs]
class MetricComparator:
[docs]
@abstractmethod
def compare(self, a, b) -> Union[int, float]:
"""Compare two metric values.
Metric values do not have to be numbers.
Args:
a: first metric value
b: second metric value
Returns: negative number if a < b; 0 if a == b; positive number if a > b.
"""
pass