validates if a given path is:
        - absolute,
        - exists on current machine
        - is a directory

def _path_is_valid(self, path):
        """validates if a given path is:
        - absolute,
        - exists on current machine
        - is a directory
        """
        VALIDATORS = [
            (os.path.isabs, self._ERROR_PATH_NOT_ABSOLUTE),
            (os.path.exists, self._ERROR_PATH_DOESNT_EXISTS),
            (os.path.isdir, self._ERROR_PATH_NOT_A_DIR),
        ]

        for validator in VALIDATORS:
            func, str_err = validator
            if not func(path):
                self._print(str_err.format(path), 'red')
                return
        return True