input: 
  from typing import List
  
  def convert_sql_to_pandas(sql_statement: str, conn) -> pd.DataFrame:
      """ Converts 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)