fix linting and typing errors

tested/languages/haskell/config.py

@@ -2,6 +2,7 @@
 from pathlib import Path
 from typing import TYPE_CHECKING, Optional
 
+from tested.configs import GlobalConfig
 from tested.datatypes import AllTypes
 from tested.dodona import AnnotateCode, Message
 from tested.features import Construct, TypeSupport
@@ -83,7 +84,7 @@ def supported_constructs(self) -> set[Construct]:
             Construct.ASSIGNMENTS,
             Construct.EVALUATION,
             Construct.GLOBAL_VARIABLES,
-            Construct.HETEROGENEOUS_ARGUMENTS
+            Construct.HETEROGENEOUS_ARGUMENTS,
         }
 
     def compilation(self, files: list[str]) -> CallbackResult:
@@ -115,7 +116,7 @@ def linter(self, remaining: float) -> tuple[list[Message], list[AnnotateCode]]:
         return linter.run_hlint(self.config.dodona, remaining)
 
     def cleanup_description(self, statement: str) -> str:
-        return cleanup_description(self, self.clean_types_regex.sub(r'\1', statement))
+        return cleanup_description(self, self.clean_types_regex.sub(r"\1", statement))
 
     def cleanup_stacktrace(self, stacktrace: str) -> str:
         filename = submission_file(self)
@@ -169,7 +170,9 @@ def cleanup_stacktrace(self, stacktrace: str) -> str:
     def generate_statement(self, statement: Statement) -> str:
         from tested.languages.haskell import generators
 
-        return self.clean_types_regex.sub(r'\1', generators.convert_statement(statement))
+        return self.clean_types_regex.sub(
+            r"\1", generators.convert_statement(statement)
+        )
 
     def generate_execution_unit(self, execution_unit: "PreparedExecutionUnit") -> str:
         from tested.languages.haskell import generators

tested/languages/haskell/generators.py

@@ -40,6 +40,7 @@
 def convert_arguments(arguments: list[Expression]) -> str:
     return ", ".join(convert_statement(arg) for arg in arguments)
 
+
 def convert_value(value: Value) -> str:
     # Handle some advanced types.
     if value.type == AdvancedSequenceTypes.TUPLE: