def __delitem__(self, key):
    caseless_key = key.lower()
    del self.data[self.caseless_keys[caseless_key]]
    del self.caseless_keys[caseless_key]
Generates a dictionary that's made up of the configurations on the project.
dataset/ETHPy150Open GoogleCloudPlatform/python-compat-runtime/appengine-compat/exported_appengine_sdk/google/appengine/api/urlfetch.py/_CaselessDict.__delitem__--crossover with--dataset/ETHPy150Open fabric-bolt/fabric-bolt/fabric_bolt/projects/models.py/Stage.get_configurations