add dostring and type hints

directlfq/utils.py

@@ -310,13 +310,26 @@ def index_and_log_transform_input_df(data_df):
 def remove_allnan_rows_input_df(data_df):
     return data_df.dropna(axis = 0, how = 'all')
 
-def remove_potential_quant_id_duplicates(data_df):
+def remove_potential_quant_id_duplicates(data_df : pd.DataFrame):
+    """
+    Remove duplicate entries from a DataFrame based on the QUANT_ID column.
+
+    This function removes duplicate rows from the input DataFrame, keeping only the first
+    occurrence of each unique QUANT_ID. It also logs a warning message if any duplicates
+    are found and removed.
+
+    Args:
+        data_df (pd.DataFrame): dataframe in directLFQ format
+
+    Returns:
+        pd.DataFrame: dataframe in directLFQ format w duplicate QUANT_ID entries removed.
+    """
     before_drop = len(data_df)
     data_df = data_df.drop_duplicates(subset=config.QUANT_ID, keep='first')
     after_drop = len(data_df)
     if before_drop != after_drop:
         entries_removed = before_drop - after_drop
-        LOGGER.info(f"Duplicate quant_ids detected. {entries_removed} rows removed from input df.")
+        LOGGER.warning(f"Duplicate quant_ids detected. {entries_removed} rows removed from input df.")
 
     return data_df