def setup(self):
        """Create 4 datasets with two different variables"""

        t_size, x_size, y_size = 50, 450, 400
        t = np.arange(t_size)
        data = np.random.randn(t_size, x_size, y_size)

        self.dsA0 = xr.Dataset(
            {"A": xr.DataArray(data, coords={"T": t}, dims=("T", "X", "Y"))}
        )
        self.dsA1 = xr.Dataset(
            {"A": xr.DataArray(data, coords={"T": t + t_size}, dims=("T", "X", "Y"))}
        )
        self.dsB0 = xr.Dataset(
            {"B": xr.DataArray(data, coords={"T": t}, dims=("T", "X", "Y"))}
        )
        self.dsB1 = xr.Dataset(
            {"B": xr.DataArray(data, coords={"T": t + t_size}, dims=("T", "X", "Y"))}
        )
Create 4 datasets with two different variables
asv_bench/benchmarks/combine.py