func (m *Message) AddHeader(key string, value string) Header {
	newHeader := Header{Key: key, Value: value}
	m.Headers = append(m.Headers, newHeader)
	return newHeader
}
func (m *Message) AddHeader(key string, value string) Header {
	newHeader := Header{Key: key, Value: value}
	m.Headers = append(m.Headers, newHeader)
	return newHeader
}
func ( m * Message ) AddHeader ( key string , value string ) Header { newHeader := Header { Key : key , Value : value } m . Headers = append ( m . Headers , newHeader ) return newHeader }
// Ads a Header to message
Ads a Header to message