Duplicate Type Definitions

[JonathanWenger]

In a Nutshell

Duplicate types ToleranceDiffusionType and DenseOutputLocationArgType, which are just aliases for the same expression Union[FloatArgType, np.ndarray]

In Detail

There are type definitions in probnum.type, which define the same general concept, namely a variable which is either a scalar or an array. Currently there are two overly specific names for this type, once given as an arg type, suggesting there is some type normalization coming after and once not.

TODO

• Investigate usages of ToleranceDiffusionType and DenseOutputLocationArgType to determine whether there is type normalization (meaning functionality which converts the input to a common type, e.g. a np.array) going on
• Define a single (argument) type ScalarOrArrayArgType superseding the overly specific types above or simply replace with Union[FloatArgType, np.ndarray]
• Move new arg type under Argument types in probnum.type