Fix uses_dynamic_as_bottom error (#63)
diff --git a/lib/src/backends/memory/memory_file_system_entity.dart b/lib/src/backends/memory/memory_file_system_entity.dart
index dfe23f9..05dd9a1 100644
--- a/lib/src/backends/memory/memory_file_system_entity.dart
+++ b/lib/src/backends/memory/memory_file_system_entity.dart
@@ -209,7 +209,7 @@
/// [_defaultCheckType] is used to perform this validation.
FileSystemEntity _renameSync(
String newPath, {
- _RenameOverwriteValidator<dynamic> validateOverwriteExistingEntity,
+ _RenameOverwriteValidator<_Node> validateOverwriteExistingEntity,
bool followTailLink: false,
_TypeChecker checkType,
}) {