It would be convenient to be able to serialize executable TestSuite objects into JSON that can be then also be used to recreate same suite later. Most important use cases are:

• Easier to transfer tests between processes and machines. This would help, for example, https://github.com/MarketSquare/robotframework-cluster.
• Possibility to save a suite, possible a nested suite, constructed from data on file system into a single file that is faster to parse.
• Alternative data format for external tools generating tests.

In the subsequent comments I'll go through some design ideas I have related to this. Please use 👍 and 👎 to indicate do you like those ideas as well as this issue in general. Written comments obviously appreciated as well!