diff --git a/src/spox/_fields.py b/src/spox/_fields.py
index ef20a50..d848665 100644
--- a/src/spox/_fields.py
+++ b/src/spox/_fields.py
@@ -8,7 +8,7 @@
 import warnings
 from collections.abc import Iterable, Iterator, Sequence
 from dataclasses import dataclass
-from typing import Any, Optional, Union, cast
+from typing import Optional, Union, cast
 
 from ._attributes import Attr
 from ._exceptions import InferenceWarning
@@ -76,14 +76,6 @@ def __setattr__(self, attr: str, value: Union[Var, Sequence[Var]]) -> None:
         else:
             self.vars[attr] = value
 
-    def __getitem__(self, key: str):
-        """Allows dictionary-like access to retrieve variables."""
-        return self.vars[key]
-
-    def __setitem__(self, key: str, value: Union) -> None:
-        """Allows dictionary-like access to set variables."""
-        self.vars[key] = value
-
 
 @dataclass
 class BaseVarInfos(BaseFields):
@@ -147,10 +139,6 @@ def get_fields(self) -> dict[str, Union[None, _VarInfo, Sequence[_VarInfo]]]:
         """Return a mapping of all fields stored in this object by name."""
         return self.__dict__.copy()
 
-    def _unpack_to_any(self) -> Any:
-        """Unpack the stored fields into a tuple of appropriate length, typed as Any."""
-        return tuple(self.__dict__.values())
-
     @property
     def fully_typed(self) -> bool:
         """Check if all stored variables have a concrete type."""
diff --git a/tests/test_function.py b/tests/test_function.py
index a02568c..9933f61 100644
--- a/tests/test_function.py
+++ b/tests/test_function.py
@@ -151,7 +151,7 @@ class Outputs(BaseOutputs):
         outputs: Outputs
 
         def constructor(self, attrs: dict[str, Attr], inputs: BaseVars) -> Outputs:
-            x = inputs["X"]
+            x = inputs.X
             a = op.mul(
                 linear(
                     x,