  dwave-system is a basic API for easily incorporating the D-Wave
system as a sampler in the D-Wave Ocean software stack, directly
or through Leap's cloud-based hybrid solvers. It includes
DWaveSampler, a dimod sampler that accepts and passes system
parameters such as system identification and authentication down
the stack, LeapHybridSampler, for Leap's hybrid solvers, and other.
It also includes several useful composites---layers of pre- and
post-processing---that can be used with DWaveSampler to handle
minor-embedding, optimize chain strength, etc.
