Imports go.elastic.co/apm/v2 go.elastic.co/apm/v2/model go.elastic.co/apm/v2/transport go.elastic.co/fastjson go.uber.org/zap/zapcore Standard library imports bytes compress/zlib context crypto/tls crypto/x509 encoding/json errors fmt io log net net/http net/url os os/exec path/filepath runtime sort strings sync syscall testing time