"strings"
)

// writeHeapProto writes the current heap profile in protobuf format to w.
func writeHeapProto(w io.Writer, p []profilerecord.MemProfileRecord, rate int64, defaultSampleType string) error {
	b := newProfileBuilder(w)
	b.pbValueType(tagProfile_PeriodType, "space", "bytes")
	b.pb.int64Opt(tagProfile_Period, rate)
	b.pbValueType(tagProfile_SampleType, "alloc_objects", "count")
	b.pbValueType(tagProfile_SampleType, "alloc_space", "bytes")