Update cross-link to cuda-python object (#1699)

NVIDIA/cuda-python#137 reorganised the low-level binding structure which broke our cross-linking, update to the new name to fix.

- Closes #1698

Authors:
  - Lawrence Mitchell (https://github.com/wence-)

Approvers:
  - Matthew Murray (https://github.com/Matt711)
  - Bradley Dice (https://github.com/bdice)

URL: #1699

python/rmm/rmm/pylibrmm/device_buffer.pyx

@@ -156,7 +156,7 @@ cdef class DeviceBuffer:
         device : optional
             The CUDA device to which to prefetch the memory for this buffer.
             Defaults to the current CUDA device. To prefetch to the CPU, pass
-            :py:attr:`~cuda.cudart.cudaCpuDeviceId` as the device.
+            :py:attr:`~cuda.bindings.runtime.cudaCpuDeviceId` as the device.
         stream : optional
             CUDA stream to use for prefetching. Defaults to self.stream
         """

python/rmm/rmm/statistics.py

@@ -74,8 +74,8 @@ def enable_statistics() -> None:
 def get_statistics() -> Optional[Statistics]:
     """Get the current allocation statistics.
 
-    Return
-    ------
+    Returns
+    -------
     If enabled, returns the current tracked statistics.
     If disabled, returns None.
     """
@@ -94,8 +94,8 @@ def push_statistics() -> Optional[Statistics]:
     If statistics are disabled (the current memory resource is not an
     instance of StatisticsResourceAdaptor), this function is a no-op.
 
-    Return
-    ------
+    Returns
+    -------
     If enabled, returns the current tracked statistics _before_ the pop.
     If disabled, returns None.
     """
@@ -114,8 +114,8 @@ def pop_statistics() -> Optional[Statistics]:
     If statistics are disabled (the current memory resource is not an
     instance of StatisticsResourceAdaptor), this function is a no-op.
 
-    Return
-    ------
+    Returns
+    -------
     If enabled, returns the popped counters.
     If disabled, returns None.
     """
@@ -232,8 +232,8 @@ def report(
         ordered_by
             Sort the statistics by this attribute.
 
-        Return
-        ------
+        Returns
+        -------
         The pretty formatted string of the memory statistics
         """
 
@@ -279,8 +279,8 @@ def _get_descriptive_name_of_object(obj: object) -> str:
     obj
         Object in question
 
-    Return
-    ------
+    Returns
+    -------
     A string including filename, line number, and object name.
     """