fix bigbio imports

ddi_corpus.py

@@ -28,6 +28,9 @@ 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 = ['English']
 _PUBMED = True
@@ -177,7 +180,7 @@ class DDICorpusDataset(datasets.GeneratorBasedBuilder):
                     if not file.endswith(".txt"):
                         continue
 
-                    brat_example = parsing.parse_brat_file(Path(subdir) / file)
+                    brat_example = parse_brat_file(Path(subdir) / file)
                     source_example = self._to_source_example(brat_example)
 
                     yield source_example["document_id"], source_example
@@ -190,8 +193,8 @@ class DDICorpusDataset(datasets.GeneratorBasedBuilder):
                         continue
 
                     # Read brat annotations for the given text file and convert example to the BigBio-KB format
-                    brat_example = parsing.parse_brat_file(Path(subdir) / file)
-                    kb_example = parsing.brat_parse_to_bigbio_kb(brat_example)
+                    brat_example = parse_brat_file(Path(subdir) / file)
+                    kb_example = brat_parse_to_bigbio_kb(brat_example)
                     kb_example["id"] = kb_example["document_id"]
 
                     yield kb_example["id"], kb_example