| context | The information we need to keep track of a client-server connection |
| CtxObject | Python object, wrapper for a struct context |
| element | The representation of a tuple element in C code, in both the server and a C client |
| ttuple | Doubly-linked list of tuples, for efficient insertions and deletions |
| tuple | An ordered sequence of data values: integers, floats, strings. If this is a template (used during GET and READ operations to match existing tuples), an element can also be a wildcard |
| tuple_list | Convenience struct, for when somebody needs to make a quick list of tuples |
