Example of raw filters (url-encoded): foo=a,b&bar=c|baz=d Produces: [ [ ["foo", "a,b"], ["bar", "c"]], [["baz", "d"]]] ^ ^ ^ | | '--- Per-label OR: "foo" must have value "a" OR "b" | '----- In-group AND: "foo" must be "a" or "b" AND "bar" must be "c" '------- All groups OR: "foo" must be "a" or "b" AND "bar" must be "c", OR "baz" must be "d".

LabelFilter represents a condition based on a label name, value and matching operator.

LineFilter represents a condition based on a JSON raw text match.

MultiQueries is an union group of singleQueries (OR'ed).

singleQuery is an intersect group of matches (AND'ed).