Fixed selectedTags getter

src/mdh_bridge.py

@@ -9,34 +9,34 @@
 """
 
 """
-This class allows for easy communication with the Metadatahub webql. For this it offers classes, mirroring 
-every query or object that can be used in the MDH. All of these classes inherit MDHObject, which offers 
+This class allows for easy communication with the Metadatahub webql. For this it offers classes, mirroring
+every query or object that can be used in the MDH. All of these classes inherit MDHObject, which offers
 functionality to (de-)serialize the contents from the class into a query, or the result of a query into the classes.
 All Queries inherit from MDHQuery, which implements a different serialization algorithm.
 
 The usage of this functionality can be broken down into a few steps:
-1. Set up a MDHQueryRoot class. This class contains a list of queries that will be executed in the MDH. 
+1. Set up a MDHQueryRoot class. This class contains a list of queries that will be executed in the MDH.
     query_root = MDHQueryRoot()
 
 2. Set up an MDHQuery. For this you have to create some new Query, like this:
     query = MDHQuery_searchMetadata()
 Every query has some flags as their members, which are default set to False. When they are set to another value, that
 value is used as an argument for their query. For example, when you only want to search metadata with a certain fileId:
     query.fileIds = [1, 2, 3, 4, 5]
-    
+
 3. Set the result field of the Query: For every query, the result field has to be specified. This field is repsonsible,
-for telling the MDH which of the resulting objects attributes you actually want to get returned. For example, if you 
+for telling the MDH which of the resulting objects attributes you actually want to get returned. For example, if you
 only want to see the total number of results and all the metadata for all the resulting classes, use the following:
     query.result.totalFilesCount = True
     query.result.files = MDHFile()
     query.result.files.metadata = MDHMetadata()
     query.result.files.metadata.metadatum.name = True
     query.result.files.metadata.metadatum.value = True
-    
+
 4. Add the query to the query_root and execute it:
     query_root.queries.append(query)
-    query_root.build_and_send_request()    
-    
+    query_root.build_and_send_request()
+
 5. Access the queries results:
     total_file_count = query_root.queries[0].result.totalFilesCount
     ...
@@ -104,7 +104,7 @@ def serialize(self):
 
         # Get all members of the Query
         attributes = [attr for attr in dir(self) if not callable(
-            getattr(self, attr)) and not attr.startswith("__") and attr not in ["query_name", "result"]]
+            getattr(self, attr)) and not attr.startswith("_") and attr not in ["query_name", "result"]]
 
         has_arguments = False
 
@@ -307,6 +307,7 @@ class MDHQuery_searchMetadata(MDHQuery):
     offset: bool or int = False
     fileSizeAsHumanReadable: bool = False  # TODO how do we do this with bool values?
     convertDateTimeTo: bool or str = False
+    _selectedTags: bool or [str] = False
 
     @property
     def selectedTags(self) -> bool or [str]: