def drop_field(self, field):
        self.dropped_fields.add(field)
@return: an L{axiom.store.AttributeQuery} of the names of the exits
dataset/ETHPy150Open Stiivi/brewery/brewery/nodes/field_nodes.py/FieldMapNode.drop_field--crossover with--dataset/ETHPy150Open twisted/imaginary/imaginary/iimaginary.py/IContainer.getExitNames