What are the benefits of Google’s Protocol Buffers?
If this value is missing, the message remains "uninitialized", i. At the time of development, the format - as already mentioned, initially used internally at Google - was to replace the similar XML format. This is followed by the Protobuf messages, which can be composed of any number of fields, whereby the typical data types such as "bool", "int32", "float", "double", or "string" are available. If this is not the case, a value defined as the standard is used.