Because there are dependencies that depend on other
        dependencies are created lists into other lists.
        Thus creating this loop create one-dimensional list and
        remove double packages from dependencies.

def one_for_all(self, deps):
        """Because there are dependencies that depend on other
        dependencies are created lists into other lists.
        Thus creating this loop create one-dimensional list and
        remove double packages from dependencies.
        """
        requires, dependencies = [], []
        deps.reverse()
        # Inverting the list brings the
        # dependencies in order to be installed.
        requires = Utils().dimensional_list(deps)
        dependencies = Utils().remove_dbs(requires)
        return dependencies