Refactor convert to op

[valer1435]

Closes #299

[pep8speaks]

Hello @valer1435! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2023-09-28 11:47:00 UTC

[codecov]

Codecov Report

Merging #1176 (4809b47) into master (92cee16) will increase coverage by 0.11%.
The diff coverage is 91.30%.

@@            Coverage Diff             @@
##           master    #1176      +/-   ##
==========================================
+ Coverage   79.70%   79.81%   +0.11%     
==========================================
  Files         141      141              
  Lines        9851     9796      -55     
==========================================
- Hits         7852     7819      -33     
+ Misses       1999     1977      -22     

Files	Coverage Δ
fedot/core/operations/evaluation/classification.py	96.82% <100.00%> (+2.45%)	⬆️
fedot/core/operations/evaluation/clustering.py	100.00% <100.00%> (+3.44%)	⬆️
...core/operations/evaluation/common_preprocessing.py	100.00% <100.00%> (+3.12%)	⬆️
fedot/core/operations/evaluation/gpu/clustering.py	54.54% <100.00%> (+3.19%)	⬆️
fedot/core/operations/evaluation/gpu/common.py	48.88% <100.00%> (+1.95%)	⬆️
fedot/core/operations/evaluation/regression.py	100.00% <100.00%> (+3.17%)	⬆️
fedot/core/operations/evaluation/text.py	63.29% <100.00%> (+2.85%)	⬆️
fedot/core/operations/evaluation/time_series.py	100.00% <100.00%> (+3.38%)	⬆️
...ore/operations/evaluation/evaluation_interfaces.py	86.36% <60.00%> (+0.52%)	⬆️

[kasyanovse]

Можно без .keys().