Trouble while installing package

[faridabdolhosseinpour]

I use GoogleColab
First i installed using this command :

%%bash
git clone https://github.com/gmontamat/gentun
cd gentun
python setup.py install

then i imported package using this command

from gentun import GeneticAlgorithm, Population, XgboostIndividual

i face this error

ImportError                               Traceback (most recent call last)
<ipython-input-2-a67f03c5af3f> in <module>()
      1 from sklearn.datasets import fetch_california_housing
----> 2 from gentun import GeneticAlgorithm, Population, XgboostIndividual

ImportError: cannot import name 'GeneticAlgorithm' from 'gentun' (unknown location)

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after excuting this command output is

import gentun
dir(gentun)

['__doc__',
 '__file__',
 '__loader__',
 '__name__',
 '__package__',
 '__path__',
 '__spec__']