Imports github.com/antlr/antlr4/runtime/Go/antlr github.com/grafeas/grafeas/go/filtering/ast github.com/grafeas/grafeas/go/filtering/common github.com/grafeas/grafeas/go/filtering/operators github.com/grafeas/grafeas/go/filtering/parser/gen github.com/grafeas/grafeas/cel Standard library imports fmt strconv