packages/vaex-core/vaex/dataframe.py
def nop(self, expression, progress=False, delay=False):
        """Evaluates expression, and drop the result, usefull for benchmarking, since vaex is usually lazy"""
        expression = _ensure_string_from_expression(expression)
        def map(ar):
            pass
        def reduce(a, b):
            pass
        return self.map_reduce(map, reduce, [expression], delay=delay, progress=progress, name='nop', to_numpy=False)
def nop(self, expression, progress=False, delay=False):
        """Evaluates expression, and drop the result, usefull for benchmarking, since vaex is usually lazy"""
        expression = _ensure_string_from_expression(expression)
        def map(ar):
            pass
        def reduce(a, b):
            pass
        return self.map_reduce(map, reduce, [expression], delay=delay, progress=progress, name='nop', to_numpy=False)
Evaluates expression, and drop the result, usefull for benchmarking, since vaex is usually lazy