I have just started developing code to process fit files and am using the 10.10 SDK, but I am finding messages in my fit file files which do not appear to be included in the SDK, for example message numbers 22, 72, 79, 104. From looking at another utility which I found I think these are Source, Training file, Firstbeat profile and Battery messages but I am wondering why these are not included in the SDK?
How can I get a complete list of all messages and their structures if this is not included in the SDK?