func github.com/prometheus/common/expfmt.NewEncoder

2 uses

	github.com/prometheus/common/expfmt (current package)
		encode.go#L64: func NewEncoder(w io.Writer, format Format) Encoder {

	github.com/prometheus/client_golang/prometheus/promhttp
		http.go#L163: 		enc := expfmt.NewEncoder(w, contentType)