input: 
  def sql_to_pandas(query: str, conn: object) -> pd.DataFrame:
      """Converts a given SQL statement into a Python Pandas DataFrame.
      
      >>> sql_to_pandas("SELECT * FROM book;", some_connection)
           id  title  author
      0     1   Book1  Author1
      1     2   Book2  Author2
      """
  
output:     
      df = pd.read_sql(query, conn)
      return df
  