add parsing imports

quaero.py

@@ -6,6 +6,9 @@ import datasets
 from .bigbiohub import kb_features
 from .bigbiohub import BigBioConfig
 from .bigbiohub import Tasks
+from .bigbiohub import parse_brat_file
+from .bigbiohub import brat_parse_to_bigbio_kb
+
 
 _LANGUAGES = ['French']
 _PUBMED = True