[no ci] fix examples in ExpandDims docstring

Author: vpratz

bayesflow/adapters/transforms/expand_dims.py

@@ -26,22 +26,22 @@ class ExpandDims(ElementwiseTransform):
     >>> b = np.array([[1, 2, 3], [4, 5, 6]])
     >>> dat = dict(a=a, b=b)
 
-    >>> ed = bf.adapters.transforms.ExpandDims("a", axis=0)
+    >>> ed = bf.Adapter().expand_dims("a", axis=0)
     >>> new_dat = ed.forward(dat)
     >>> new_dat["a"].shape
     (1, 3)
 
-    >>> ed = bf.adapters.transforms.ExpandDims("a", axis=1)
+    >>> ed = bf.Adapter().expand_dims("a", axis=1)
     >>> new_dat = ed.forward(dat)
     >>> new_dat["a"].shape
     (3, 1)
 
-    >>> ed = bf.adapters.transforms.ExpandDims("b", axis=1)
+    >>> ed = bf.Adapter().expand_dims("b", axis=1)
     >>> new_dat = ed.forward(dat)
     >>> new_dat["b"].shape
     (2, 1, 3)
 
-    It is recommended to precede this transform with a :class:`bayesflow.adapters.transforms.ToArray` transform.
+    It is recommended to precede this transform with a :class:`~bayesflow.adapters.transforms.ToArray` transform.
     """
 
     def __init__(self, *, axis: int | tuple):