Change structure

[saitejar]

Feel free to change the structure. I just put up a some structure to get started.
Lets expose a python API to client and have methods to push and retrieve merged result.
During creation of the datatype, client would specify the type and also a key to identify itself.(other nodes where same datatype with same key, will all be referring to the same variable)

[saitejar]

We will do a state based CRDT for now, operations based CRDT needs exactly once delivery/reliable channel.