def get(self, key, failobj=None):
    """Get dictionary item, defaulting to another value if it does not exist.

    Args:
      key: Key of item to get.  Key is case insensitive, so "d['Key']" is the
        same as "d['key']".
      failobj: Value to return if key not in dictionary.
    """
    try:
      cased_key = self.caseless_keys[key.lower()]
    except __HOLE__:
      return failobj
    return self.data[cased_key]
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/api/urlfetch.py/_CaselessDict.get