I cannot determine whether this is an issue with Positron itself or a specific package. However, the traceback ultimately points to Positron’s Python extension. TypeError: Type parameter +_R_co ...

In Python, however, there's no need to define a type. You can just use the variable name and the initial value. Python automatically figures out what your variable type is supposed to be. For example: ...

Python supports many types of parameters -- positional, with defaults, keyword only, var-args, var-keyword-args. The intended signature can not always be unambiguously derived from the declaration ...

With these custom types implemented, the signature of our original method becomes much more readable and less likely to have parameters accidentally provided in the wrong order. This is shown in ...

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