v1.6.1 - Union Types

It's now possible to do this, like it always should have been

class MyModel(BaseModel):
    array: NDArray[Any, int | float]

Features

• Support for Union Dtypes

Structure

• New validation module containing shape and dtype convenience methods
  to declutter main namespace and make a grouping for related code
• Rename all serialized arrays within a container dict to value to be able
  to identify them by convention and avoid long iteration - see perf below.

Perf

• Avoid iterating over every item in an array trying to convert it to a path for
  a several order of magnitude perf improvement over 1.6.0 (oops)

Docs

• Page for dtypes, mostly stubs at the moment, but more explicit documentation
  about what kind of dtypes we support.