chore: cleanup, add test for single and nested

Signed-off-by: heitorlessa <[email protected]>

Author: heitorlessa

Diff for: aws_lambda_powertools/utilities/parameters/base.py

@@ -28,7 +28,7 @@
 
 from aws_lambda_powertools.shared import constants, user_agent
 from aws_lambda_powertools.shared.functions import resolve_max_age
-from aws_lambda_powertools.utilities.parameters.types import RecursiveOptions, TransformOptions
+from aws_lambda_powertools.utilities.parameters.types import TransformOptions
 
 from .exceptions import GetParameterError, TransformParameterError