Merge branch '3-remove-x-copy-from-aggregator-transform-method' into 'master'

Resolve "Remove X.copy() from Aggregator.transform method"

Closes #3

See merge request !3
4 jobs for master in 37 seconds
Status Job ID Name Coverage
  Build
failed #358568560
build

00:00:37

 
  Lint
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black
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pylint
 
  Test
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tox
 
Name Stage Failure
failed
build Build
ule>                                                                          
File "/builds/InstaffoOpenSource/DataScience/instaffo-scikit-learn/.venv/l
ib/python3.6/site-packages/pip/_vendor/urllib3/connectionpool.py", line 29,
in <module>
ModuleNotFoundError: No module named 'pip._vendor.urllib3.connection'

install [--no-dev] [--dry-run] [-E|--extras EXTRAS] [--develop DEVELOP]

ERROR: Job failed: exit code 1