fix(requests): approvedBy/rejectedBy untyped — wire shape varies by platform version (BLDX-1611)

Second live failure on the same fields: rejectedBy is a list of approver
OBJECTS on kill-argo (first fix assumed list of strings — typed from
inference, not evidence). These fields now parse as Any with the variants
documented; regression test parses string, string-list, and object-list
shapes. Follow-up: capture the real payload and introduce a typed
Approver model from evidence.

Author: Aryamanz29

pyatlan/model/atlan_request.py

@@ -132,18 +132,20 @@ class AtlanRequest(AtlanObject):
         default=None,
         description="How the request must be approved: `single`, `unanimous` or `consesus`.",
     )
-    approved_by: Optional[Union[str, List[str]]] = Field(
+    approved_by: Optional[Any] = Field(
         default=None,
         description=(
-            "User(s) who approved the request — a list when the request "
-            "has multiple approvers."
+            "Who approved the request. The wire shape varies by platform "
+            "version: a username string, a list of usernames, or a list of "
+            "approver-detail objects — kept untyped so every variant parses."
         ),
     )
-    rejected_by: Optional[Union[str, List[str]]] = Field(
+    rejected_by: Optional[Any] = Field(
         default=None,
         description=(
-            "User(s) who rejected the request — a list when the request "
-            "has multiple approvers."
+            "Who rejected the request. The wire shape varies by platform "
+            "version: a username string, a list of usernames, or a list of "
+            "approver-detail objects — kept untyped so every variant parses."
         ),
     )
     status: Optional[str] = Field(

tests/unit/test_requests_client.py

@@ -86,15 +86,21 @@ def test_actioned_records_with_list_approvers_parse():
     """rejectedBy/approvedBy come back as LISTS for multi-approver requests —
     a page containing already-actioned records must parse (regression: the
     str-typed fields crashed list() on any tenant with actioned requests)."""
-    actioned = {
-        **RAW_REQUEST,
-        "status": "rejected",
-        "rejectedBy": ["admin-one", "admin-two"],
-        "approvedBy": [],
-    }
-    parsed = AtlanRequest(**actioned)
-    assert parsed.rejected_by == ["admin-one", "admin-two"]
-    assert parsed.approved_by == []
+    # every shape seen or plausible in the wild must parse
+    for rejected_by in (
+        "admin-one",
+        ["admin-one", "admin-two"],
+        [{"username": "admin-one", "timestamp": 1786100000000}],
+    ):
+        actioned = {
+            **RAW_REQUEST,
+            "status": "rejected",
+            "rejectedBy": rejected_by,
+            "approvedBy": [],
+        }
+        parsed = AtlanRequest(**actioned)
+        assert parsed.rejected_by == rejected_by
+        assert parsed.approved_by == []
 
 
 def test_filter_builder_combines_with_and():