[Typing][B-69] Add type annotations for python/paddle/sparse/multiary.py (#65867)

Author: megemini

python/paddle/sparse/multiary.py

@@ -12,14 +12,28 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from paddle import _C_ops
 from paddle.base.framework import dygraph_only
 
+if TYPE_CHECKING:
+    from paddle import Tensor
+
 __all__ = []
 
 
 @dygraph_only
-def addmm(input, x, y, beta=1.0, alpha=1.0, name=None):
+def addmm(
+    input: Tensor,
+    x: Tensor,
+    y: Tensor,
+    beta: float = 1.0,
+    alpha: float = 1.0,
+    name: str | None = None,
+) -> Tensor:
     """
     Note:
         This API is only supported from ``CUDA 11.0`` .