- "description": "A list of matchers that an alert has to fulfill to match the node. A matcher is a string with a syntax inspired by PromQL and OpenMetrics. The syntax of a matcher consists of three tokens:\n* A valid Prometheus label name.\n* One of =, !=, =~, or !~. = means equals, != means that the strings are not equal, =~ is used for equality of regex expressions and !~ is used for un-equality of regex expressions. They have the same meaning as known from PromQL selectors.\n* A UTF-8 string, which may be enclosed in double quotes. Before or after each token, there may be any amount of whitespace.\n`Additional Validators:`\n* should not contain more than 5 keys\n* each key and value should not be longer than 200 characters",
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