Feature Request: Use `dplyr::left_join(relationship)` argument

[ddsjoberg]

Feature Idea

Our merging functions are (very) fancy joins with many useful options. In dplyr 1.1.1, the dplyr::left_join(relationship) argument that allows users to specify the expected type of merge that will be performed.

For example, if you specify relationship = "one-to-one" the function will error if there is more than one match on the by variables.

I think it can be useful to our users to add this argument to our functions.

Relevant Input

No response

Relevant Output

No response

Reproducible Example/Pseudo Code

No response