def validate(self, obj):
        jsonschema.validate(obj, self.schema)
Ensure OSequence.last_point doesn't barf when the sequence is empty
dataset/ETHPy150Open probcomp/bayeslite/src/metamodels/crosscat_theta_validator.py/Validator.validate--crossover with--dataset/ETHPy150Open jtauber/sebastian/tests/test_sequences.py/TestSequences.test_sequence_last_point_empty