Refactor function names for clarity.

Simplify if statements for better readability.
Update variable names for consistency.
Remove unused imports and variables.
Fix bug in calculation logic.

Author: icaoberg

braininventory/get.py

@@ -412,7 +412,7 @@ def __get_awards(df):
     --------
     numpy.ndarray
         An array of unique award numbers.
-        
+
     Note:
     -----
     The input DataFrame `df` should have a column named "award_number" containing categorical data
@@ -648,6 +648,7 @@ def __get_affiliations(df):
     """
     return df["affiliation"].value_counts().to_dict()
 
+
 def __get_contributors(df):
     """
     Get a dictionary containing the count of occurrences of each unique contributor name.