fix: method names & verbose logging

[KevinSchwarzer]

Fixes #306.

[KevinSchwarzer]

@ct2034, the focal build fails due to a rosdep key error.

[ct2034]

Okay. Let's ignore the foxy build for now.
What would be a good test that would check the issue, you raised?

[KevinSchwarzer]

What would be a good test that would check the issue, you raised?

@ct2034, we could use launch_testing, with which we could check stdout/stderr. I'm not familiar with the package, though; at our company we use a similar package, launch_pytest, which integrates nicely with pytest. However, I should be able to come up with a simple test checking for the log message in stdout depending on whether verbose is set to True.

[ct2034]

This would be awesome

[KevinSchwarzer]

@ct2034, let me know what you think of the test.

[ct2034]

Lgtm