Avoid lint error: pd.core.series.Series is not defined

Author: leehart

malariagen_data/anoph/sample_metadata.py

@@ -1155,7 +1155,7 @@ def lookup_sample(
         self,
         sample: base_params.sample,
         sample_set: Optional[base_params.sample_set] = None,
-    ) -> pd.core.series.Series:
+    ) -> pd.Series:
         df_samples = self.sample_metadata(sample_sets=sample_set).set_index("sample_id")
         sample_rec = None
         if isinstance(sample, str):