input: 
  def convert_sql_to_pandas(sql_statement: str, conn) -> pd.DataFrame:
      """ Convert a given SQL statement into a Python Pandas DataFrame.
      >>> convert_sql_to_pandas("SELECT * FROM book;", conn)
      <class 'pandas.core.frame.DataFrame'>
      """
  
output:     
      return pd.read_sql(sql_statement, conn)
  