Expand BlackboxPyTealer in an attempt to simplify dryrun request generation

[michaeldiamant]

Optionally proposes a change to #322 that may simplify blackbox test setup.

While reviewing #322, it seemed to me that it's common to heavily reference BlackboxPyTealer when constructing a Graviton dryrun request. To simplify construction, the PR proposes moving construction into BlackboxPyTealer.

If the idea is worth keeping, then other DryRunInspector method ought to be provided.

Aside: I originally attempted to implement the PR by exposing a partially applied function in order to minimize parameter duplication.

• However, due to my lack of Python understanding and/or available tooling, adding a class method as shown seems to be path of least resistance.
• A disadvantage of the PR's approach is that it hides DryRunInspector. I can see downsides to adding another layer, which is why I present the PR optionally.

[tzaffi]

Have you looked at functools.partial ?

[tzaffi]

This is clearly an improvement, thank you! Since you're touching this code I also recommend you consider the following:

1. the minor python 3.10 typing conventions I suggest
2. I would be supportive of a clever use of functools.partials. I'm curious how this would look like.
3. Now that BlackboxPyTealer can also run dry-runs, I think the suffix PyTealer is somewhat misleading. Consider a better? name such as SubroutineRunner or BlacboxTester or you can probably come up with something better. (make sure to announce it on slack's #christening channel)

[michaeldiamant]

As of 7f5f526, I've made these changes per PR feedback:

• Rename from BlackboxPyTealer to PyTealDryRunExecutor. I'm not strongly tied to the proposed name. I am also OK to keep the existing name.
• Replace existing DryRunExecutor.dryrun_on_*_sequence invocations with PyTealDryRunExecutor.dryrun_on_sequence. In a child PR, I'll provide updates for other usages in case we want to limit changes.

Note - The build issue stems from the parent PR. I'll update the PR once the parent branch issue is resolved.