feat: add return mode like a parameter

[leynier]

Resolve #42

[sourcery-ai]

Sourcery Code Quality Report

✅  Merging this PR will increase code quality in the affected files by 0.25%.

Quality metrics	Before	After	Change
Complexity	0.49 ⭐	0.55 ⭐	0.06 👎
Method Length	28.28 ⭐	27.95 ⭐	-0.33 👍
Working memory	5.16 ⭐	5.46 ⭐	0.30 👎
Quality	88.94% ⭐	89.19% ⭐	0.25% 👍

Other metrics	Before	After	Change
Lines	618	624	6

Changed files	Quality Before	Quality After	Quality Change
postgrest_py/base_request_builder.py	86.82% ⭐	86.77% ⭐	-0.05% 👎
postgrest_py/_async/request_builder.py	90.50% ⭐	88.17% ⭐	-2.33% 👎
postgrest_py/_sync/request_builder.py	90.52% ⭐	88.18% ⭐	-2.34% 👎
tests/_async/test_request_builder.py	92.64% ⭐	92.64% ⭐	0.00%
tests/_sync/test_request_builder.py	92.64% ⭐	92.64% ⭐	0.00%

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

File	Function	Complexity	Length	Working Memory	Quality	Recommendation

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.

---

Please see our documentation here for details on how these metrics are calculated.

We are actively working on this report - lots more documentation and extra metrics to come!

Help us improve this quality report!