Adds nested subanalysis test and streamlines inherit/map_from syntax

[codecov-commenter]

Codecov Report

Base: 76.27% // Head: 75.95% // Decreases project coverage by -0.32% :warning:

Coverage data is based on head (734ec3a) compared to base (5a7204d). Patch coverage: 78.38% of modified lines in pull request are covered.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #136 +/- ## ========================================== - Coverage 76.27% 75.95% -0.33% ========================================== Files 57 57 Lines 5921 5971 +50 Branches 1189 1297 +108 ========================================== + Hits 4516 4535 +19 - Misses 1077 1107 +30 - Partials 328 329 +1 ``` | [Impacted Files](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service) | Coverage Δ | | |---|---|---| | [arcana/\_\_about\_\_.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL19fYWJvdXRfXy5weQ==) | `100.00% <ø> (ø)` | | | [arcana/deploy/medimage/xnat.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2RlcGxveS9tZWRpbWFnZS94bmF0LnB5) | `79.61% <ø> (ø)` | | | [arcana/test/stores/medimage/xnat.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL3Rlc3Qvc3RvcmVzL21lZGltYWdlL3huYXQucHk=) | `91.96% <ø> (-0.08%)` | :arrow_down: | | [arcana/core/data/format.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2NvcmUvZGF0YS9mb3JtYXQucHk=) | `72.88% <66.66%> (-0.07%)` | :arrow_down: | | [arcana/core/analysis.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2NvcmUvYW5hbHlzaXMucHk=) | `78.57% <76.64%> (-5.80%)` | :arrow_down: | | [arcana/core/enum.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2NvcmUvZW51bS5weQ==) | `84.93% <81.25%> (-1.28%)` | :arrow_down: | | [arcana/core/data/column.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2NvcmUvZGF0YS9jb2x1bW4ucHk=) | `85.43% <100.00%> (+0.14%)` | :arrow_up: | | [arcana/core/mark.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2NvcmUvbWFyay5weQ==) | `91.83% <100.00%> (+5.17%)` | :arrow_up: | | [arcana/core/utils.py](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service#diff-YXJjYW5hL2NvcmUvdXRpbHMucHk=) | `76.38% <100.00%> (+0.28%)` | :arrow_up: | | ... and [3 more](https://codecov.io/gh/Australian-Imaging-Service/arcana/pull/136/diff?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service) | | Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Australian-Imaging-Service)

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