Use @overload to implement merge_cell function

[Zncl2222]

Use overload decorator to implement merge_cell function. Make it more flexible

[codacy-production[bot]]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
:white_check_mark: +0.01% (target: -5.00%)	:white_check_mark: 100.00%

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (a7ffd3ffdbcff75e31dbb61637095973789e3f21) | 1679 | 1623 | 96.66% | | | Head commit (7518e3273f574167e48545e922b2b799f9bc75a3) | 1683 (+4) | 1627 (+4) | 96.67% (**+0.01%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#114) | 16 | 16 | **100.00%** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.39%. Comparing base (a7ffd3f) to head (7518e32).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #114 +/- ## ========================================== + Coverage 96.37% 96.39% +0.01% ========================================== Files 15 15 Lines 1711 1719 +8 ========================================== + Hits 1649 1657 +8 Misses 45 45 Partials 17 17 ```

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