update pylint

Author: sidarth16

slither/core/declarations/function.py

@@ -1586,12 +1586,14 @@ def is_returning_msg_sender(self) -> bool:
 
                     # Track assignments where an address-typed variable is assigned.
                     # This helps trace msg.sender aliases through reassignments.
-                    if isinstance(ir, Assignment) and ir.lvalue.type == ElementaryType("address"):
-                        if hasattr(ir.lvalue, "name") and hasattr(ir.rvalue, "name"):
-                            if ir.rvalue.name in assignment_map:
-                                assignment_map[ir.lvalue.name] = assignment_map[ir.rvalue.name]
-                            else:
-                                assignment_map[ir.lvalue.name] = ir.rvalue.name
+                    if (
+                        isinstance(ir, Assignment) and ir.lvalue.type == ElementaryType("address")
+                        and hasattr(ir.lvalue, "name") and hasattr(ir.rvalue, "name")
+                    ):
+                        if ir.rvalue.name in assignment_map:
+                            assignment_map[ir.lvalue.name] = assignment_map[ir.rvalue.name]
+                        else:
+                            assignment_map[ir.lvalue.name] = ir.rvalue.name
 
             for var in return_vars:
                 if var not in assignment_map: