input: 
  def select_approved_rows():
      """Select all rows from a table where the 'status' is 'approved'.
      Example:
      # Assume a table with the following rows:
      # | id | status    | data       |
      # |----|-----------|------------|
      # | 1  | approved  | some_data  |
      # | 2  | pending   | other_data |
      # | 3  | approved  | more_data  |
      
      # Running the function would return:
      # [(1, 'approved', 'some_data'), (3, 'approved', 'more_data')]
      """
      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()