input: 
  def select_approved_rows():
      """Selects all rows from a table where the 'status' is 'approved'.
      >>> select_approved_rows()
      # Assuming the table has rows with status 'approved' and 'pending'
      [('row1', 'approved'), ('row2', 'approved')]
      """
      sql = "SELECT * FROM table WHERE status = 'approved'"
      cur.execute(sql)
      return cur.fetchall()
  
output:     sql = "SELECT * FROM table WHERE status = 'approved'"
      cur.execute(sql)
      return cur.fetchall()