context is a immutable context to carry around in the processing of a
network request, or any other asynchronous task. It can carry around
cross-cutting concerns such as deadlines, tracing information, timing
information, debugging tags, etc.
At its core, a Context.t is a heterogeneous map, either custom or
an alias to hmap if installed,
alongside a set of standard keys.
Each key provides access to some specific information (deadline, timing information, etc.)
The hope is that this can be a lightweight dependency for projects that need to carry this kind of information around, and to help standardize keys. [Context] relies on dune's alternative dependencies to use optional dependencies for standard keys, instead of hard dependencies.
MIT