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- /*
- Copyright 2019 The Vitess Authors.
- 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
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- */
- package stats
- // Variable is the minimal interface which each type in this "stats" package
- // must implement.
- // When integrating the Vitess stats types ("variables") with the different
- // monitoring systems, you can rely on this interface.
- type Variable interface {
- // Help returns the description of the variable.
- Help() string
- // String must implement String() from the expvar.Var interface.
- String() string
- }
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