adding arctan2_ (ivy-llc#10494)

Co-authored-by: Vansh Gupta <[email protected]>

ivy/functional/frontends/torch/tensor.py

@@ -326,6 +326,11 @@ def arctan_(self):
     def arctan2(self, other):
         return torch_frontend.arctan2(self._ivy_array, other)
 
+    @with_unsupported_dtypes({"1.11.0 and below": ("float16", "bfloat16")}, "torch")
+    def arctan2_(self, other):
+        self._ivy_array = self.arctan2(other).ivy_array
+        return self
+
     @with_unsupported_dtypes({"1.11.0 and below": ("float16",)}, "torch")
     def acos(self):
         return torch_frontend.acos(self._ivy_array)

ivy_tests/test_ivy/test_frontends/test_torch/test_tensor.py

@@ -1726,6 +1726,40 @@ def test_torch_instance_arctan2(
     )
 
 
+# arctan2_
+@handle_frontend_method(
+    class_tree=CLASS_TREE,
+    init_tree="torch.tensor",
+    method_name="arctan2_",
+    dtype_and_x=helpers.dtype_and_values(
+        available_dtypes=helpers.get_dtypes("float"),
+        num_arrays=2,
+    ),
+)
+def test_torch_instance_arctan2_(
+    dtype_and_x,
+    frontend_method_data,
+    init_flags,
+    method_flags,
+    frontend,
+):
+    input_dtype, x = dtype_and_x
+    helpers.test_frontend_method(
+        init_input_dtypes=input_dtype,
+        init_all_as_kwargs_np={
+            "data": x[0],
+        },
+        method_input_dtypes=input_dtype,
+        method_all_as_kwargs_np={
+            "other": x[1],
+        },
+        frontend_method_data=frontend_method_data,
+        init_flags=init_flags,
+        method_flags=method_flags,
+        frontend=frontend,
+    )
+
+
 # acos
 @handle_frontend_method(
     class_tree=CLASS_TREE,