Relocate validation helper

src/globus_sdk/experimental/auth_requirements_error/_validators.py

@@ -1,15 +1,9 @@
 from __future__ import annotations
 
-import sys
 import typing as t
 
 from ._serializable import Serializable
 
-if sys.version_info >= (3, 8):
-    from typing import Literal
-else:
-    from typing_extensions import Literal
-
 S = t.TypeVar("S", bound=Serializable)
 
 
@@ -31,12 +25,6 @@ def opt_str(name: str, value: t.Any) -> str | None:
     return value
 
 
-def consent_required_literal(name: str, value: t.Any) -> Literal["ConsentRequired"]:
-    if not isinstance(value, str) or value != "ConsentRequired":
-        raise ValidationError(f"'{name}' must be the string 'ConsentRequired'")
-    return t.cast(Literal["ConsentRequired"], value)
-
-
 def opt_bool(name: str, value: t.Any) -> bool | None:
     if value is None:
         return None

src/globus_sdk/experimental/auth_requirements_error/_variants.py

@@ -42,7 +42,7 @@ def __init__(
         required_scopes: list[str],
         extra: dict[str, t.Any] | None = None,
     ):
-        self.code = _validators.consent_required_literal("code", code)
+        self.code = _validate_consent_required_literal("code", code)
         self.required_scopes = _validators.str_list("required_scopes", required_scopes)
         self.extra = extra or {}
 
@@ -73,7 +73,7 @@ def __init__(
         required_scope: str,
         extra: dict[str, t.Any] | None,
     ):
-        self.code = _validators.consent_required_literal("code", code)
+        self.code = _validate_consent_required_literal("code", code)
         self.required_scope = _validators.str_("required_scope", required_scope)
         self.extra = extra or {}
 
@@ -196,3 +196,13 @@ def to_auth_requirements_error(self) -> GlobusAuthRequirementsError:
             code=self.code,
             extra=self.extra,
         )
+
+
+def _validate_consent_required_literal(
+    name: str, value: t.Any
+) -> Literal["ConsentRequired"]:
+    if not isinstance(value, str) or value != "ConsentRequired":
+        raise _validators.ValidationError(
+            f"'{name}' must be the string 'ConsentRequired'"
+        )
+    return t.cast(Literal["ConsentRequired"], value)