code: def dump(self, f, name):
          
          array = self.get()
          # print the header line
          print("% 40s  kind=%s  shape=(%s)" % (
              name,
              array.dtype.kind,
              ",".join([str(int(size_axis)) for size_axis in array.shape]),
          ), file=f)
          # print the numbers
          counter = 0
          for value in array.flat:
              counter += 1
              print("% 20s" % value, end=' ', file=f)
              if counter % 4 == 0:
                  print(file=f)
          if counter % 4 != 0:
              print(file=f)
docs: Write the attribute to a file-like object