Listing examples requires sklearn

[alexmojaki]

$ fn_graph_studio example list
Traceback (most recent call last):
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/bin/fn_graph_studio", line 8, in <module>
    sys.exit(cli())
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/fn_graph_studio/cli.py", line 118, in example
    module = import_module(f"fn_graph.examples.{module_name}")
  File "/home/alex/.pyenv/versions/3.7.5/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 728, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/alex/.cache/pypoetry/virtualenvs/stanbic-trader-solutions-py3.7/lib/python3.7/site-packages/fn_graph/examples/machine_learning.py", line 4, in <module>
    import sklearn, sklearn.datasets, sklearn.svm, sklearn.linear_model, sklearn.metrics
ModuleNotFoundError: No module named 'sklearn'