Background

Design goals:

• Keep the public interface compact.
• Leverage standard Python syntax.
• Avoid overloading behaviour.
• Mimic NumPy when it doesn't contradict the other goals.

Use cases:

1. Extract a lazy subset of a lazy array.
2. Extract a sequence of concrete slices from a lazy array.
   • MUST NOT make the full lazy array concrete.
3. Stack a homogenous collection of lazy arrays to create a higher dimensional lazy array.
4. Join a collection of compatible lazy arrays to create a larger lazy array of the same dimensionality.