How to get a shortest path to an object?

Hi, I would like to ask how to get a shortest path to the object.
I use the code from https://ai2thor.allenai.org/robothor/documentation/#navigation :
```
from ai2thor.util.metrics import (
get_shortest_path_to_object_type
)

path = get_shortest_path_to_object(
controller=controller,
object_type="Apple",
initial_position=dict(
x=0,
y=0.9,
z=0.25
)
)
```
But the path point returned by this code is not on the grid point.
Thanks!!!