move to class decorator for typechecked

Author: andre-merzky

src/psij/resource_spec.py

@@ -45,10 +45,10 @@ def get_instance(version: int) -> 'ResourceSpec':
             raise ValueError()
 
 
+@typechecked
 class ResourceSpecV1(ResourceSpec):
     """This class implements V1 of the PSI/J resource specification."""
 
-    @typechecked
     def __init__(self, node_count: Optional[int] = None,
                  process_count: Optional[int] = None,
                  processes_per_node: Optional[int] = None,
@@ -82,7 +82,6 @@ def __init__(self, node_count: Optional[int] = None,
 
         All constructor parameters are accessible as properties.
         """
-
         self.node_count = node_count
         self.process_count = process_count
         self.processes_per_node = processes_per_node