fix: issue with assertion for sonarr deletes

[marksie1988]

Description

Fixes assertion errors for delete records when using Sonarr.

Related issues

fixes #110

Motivation and Context

resolves a bug added with type hints

How has this been tested

Tested in lab

Types of changes

• Docs change / refactoring.
• Non-breaking change (fix or feature that wouldn't cause existing functionality to change/break).
• Breaking change (fix or feature that would cause existing functionality to change/break).

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes don't generate new warnings.
• I have read the CONTRIBUTING document.
• I have added tests that prove my fix is effective or that my feature works.
• All new and existing tests pass.

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 0.12%.

Quality metrics	Before	After	Change
Complexity	1.60 ⭐	1.63 ⭐	0.03 👎
Method Length	27.16 ⭐	27.26 ⭐	0.10 👎
Working memory	6.59 🙂	6.60 🙂	0.01 👎
Quality	84.68% ⭐	84.56% ⭐	-0.12% 👎

Other metrics	Before	After	Change
Lines	3009	3040	31

Changed files	Quality Before	Quality After	Quality Change
pyarr/base.py	92.37% ⭐	92.37% ⭐	0.00%
pyarr/lidarr.py	78.26% ⭐	78.26% ⭐	0.00%
pyarr/radarr.py	91.63% ⭐	91.63% ⭐	0.00%
pyarr/readarr.py	75.69% ⭐	75.69% ⭐	0.00%
pyarr/request_handler.py	80.19% ⭐	79.24% ⭐	-0.95% 👎
pyarr/sonarr.py	90.07% ⭐	90.07% ⭐	0.00%

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
pyarr/readarr.py	ReadarrAPI._book_json	6 ⭐	131 😞	15 😞	51.23% 🙂	Try splitting into smaller methods. Extract out complex expressions
pyarr/lidarr.py	LidarrAPI._artist_json	6 ⭐	106 🙂	13 😞	57.05% 🙂	Extract out complex expressions
pyarr/lidarr.py	LidarrAPI._album_json	6 ⭐	106 🙂	13 😞	57.05% 🙂	Extract out complex expressions
pyarr/readarr.py	ReadarrAPI._author_json	6 ⭐	101 🙂	13 😞	57.73% 🙂	Extract out complex expressions
pyarr/sonarr.py	SonarrAPI._series_json	4 ⭐	80 🙂	12 😞	64.24% 🙂	Extract out complex expressions

Legend and Explanation

The emojis denote the absolute quality of the code:

• ⭐ excellent
• 🙂 good
• 😞 poor
• ⛔ very poor

The 👍 and 👎 indicate whether the quality has improved or gotten worse with this pull request.

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