# https://docs.dask.org/en/latest/generated/dask.array.Array.compute.html
# https://docs.pytorch.org/docs/stable/generated/torch.Tensor.item.html
lazy_callbacks = ("compute", "item")

def as_float(x) -> float:
    for name in lazy_callbacks:
        meth = getattr(x, name, None)
        if callable(meth):
            x = meth()
            break
    return float(x)

vmin = as_float(self.vmin)
vmax = as_float(self.vmax)

vmin_str = f"{vmin:.2e}" if vmin < 1e-3 or vmin > 9.9999e4 else f"{vmin:.2f}"
vmax_str = f"{vmax:.2e}" if vmax < 1e-3 or vmax > 9.9999e4 else f"{vmax:.2f}"