def receive_data_chunk(self, raw_data, start):
        raise NotImplementedError()
Returns True if ``delta`` is a KroneckerDelta and is nonzero for a single
dataset/ETHPy150Open adieu/django-nonrel/django/core/files/uploadhandler.py/FileUploadHandler.receive_data_chunk--crossover with--dataset/ETHPy150Open sympy/sympy/sympy/concrete/delta.py/_is_simple_delta