docs: def store_contents(self):
          """
              Stores contests of the Database into a filename database.csv.
          """
  
          string_buffer = os.linesep.join(
              map(
                  lambda x: ",".join(x),
                  map(
                      lambda x: map(
                          str,
                          x.values()
                      ),
                      self.rows
                  )
              )
          )
  
          with open(self.name + ".csv", "w") as f:
              f.write(string_buffer)