input: from typing import List
  
  def convert_sql_to_dataframe(sql_statement: str, conn) -> pd.DataFrame:
      """ Convert a given SQL statement into a Python Pandas DataFrame.
      >>> convert_sql_to_dataframe("SELECT * FROM book;", conn)
      <pandas.core.frame.DataFrame object at ...>
      """
      import pandas as pd
      return pd.read_sql_query(sql_statement, conn)
output:     import pandas as pd
      return pd.read_sql_query(sql_statement, conn)