def __init__(self, failure=None, failures=None):
        if failures is not None:
            self.failures = failures
        elif not failure:
            raise ValueError("failure is None")
        else:
            self.failures = [failure]
string : Name of the visualization (optional)
dataset/ETHPy150Open ros-infrastructure/rosdep/src/rosdep2/core.py/InstallFailed.__init__--crossover with--dataset/ETHPy150Open wrobstory/vincent/vincent/visualization.py/Visualization.name