code: def dumps_content(self):
          
  
          import numpy as np
  
          string = ''
          shape = self.matrix.shape
  
          for (y, x), value in np.ndenumerate(self.matrix):
              if x:
                  string += '&'
              string += str(value)
  
              if x == shape[1] - 1 and y != shape[0] - 1:
                  string += r'\\' + '%\n'
  
          super().dumps_content()
  
          return string
docs: Return a string representing the matrix in LaTeX syntax.
  
          Returns
          -------
          str