PSDK-102 no implicit Optional

[hkad98]

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[ghost]

Build succeeded (check pipeline).

[codecov-commenter]

Codecov Report

Merging #153 (c9b8a55) into master (5457830) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #153   +/-   ##
=======================================
  Coverage   91.65%   91.65%           
=======================================
  Files          74       74           
  Lines        4554     4554           
=======================================
  Hits         4174     4174           
  Misses        380      380           

Impacted Files	Coverage Δ
gooddata-pandas/gooddata_pandas/dataframe.py	100.00% <ø> (ø)
...ooddata-pandas/gooddata_pandas/result_convertor.py	95.30% <ø> (ø)
gooddata-pandas/gooddata_pandas/series.py	95.00% <ø> (ø)
gooddata-sdk/gooddata_sdk/compute/model/metric.py	96.18% <ø> (ø)
...talog/data_source/declarative_model/data_source.py	99.01% <100.00%> (ø)
...ta_sdk/catalog/workspace/entity_model/workspace.py	96.29% <100.00%> (ø)
gooddata-sdk/gooddata_sdk/compute/model/filter.py	91.89% <100.00%> (ø)

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[yenkins]

Sonar scan result

More detail, see in https://sonarqube-gate.intgdc.com/dashboard?id=gooddata-python-sdk-gate-PR153

To scan for vulnerabilities in dependencies and run unit tests (to get coverage report in sonar) please comment your PR with 'extended check sonar'.

[ghost]

Build succeeded (gate pipeline).

• https://checklist.intgdc.com/job/compliance/job/gooddata-python-sdk-sonarqube-scan-zuul-gate/138/ : SUCCESS in 1m 20s
• https://checklist.intgdc.com/job/compliance/job/gooddata-python-sdk-fossa-scanning-zuul-el7/138/ : FAILURE in 15s (non-voting)
• https://checklist.intgdc.com/job/compliance/job/gooddata-python-sdk-merge-compliance-check/140/ : SUCCESS in 27s