Please finish/fix the next Python Code:

class Matrix: n" Instances of this class represent a mathematical matrix with a certain number of rows and columns. wum def init_(self, initial): "me Initializes an instance of this class with an initial value, which must be a list of lists of the same size and that contain numbers that correspond to the elements of the array. nuw self. info = initial self. rows = len(initial) self._columns = len(initial[0]) @classmethod def zeros(cls, rows, columns): " "Class method that creates a new instance of the size set by its arguments and containing only zeros. num return Matrix([[0 for j in range(columns)] for i in range(rows)]) (4)classmethod def identity(cls, dimension): "m" Class method that creates a new identity matrix from the specified dimension. " "es identity = Matrix.zeros(dimension, dimension) for i in range(dimension): identity [i,i]=1 return identity @property def rows(self): "n"Property that returns the number of rows of this matrix. return self. rows @property def columns(self): "m" Property that returns the number of columns of this matrix. nun return self._columns def __getitem__(self, indices): "nn" Returns the element of this array indicated by indices, the which should be a tuple with the desired row and column. mun row, column = indices return self._info[row][column] def __setitem__(self, indices, value): n" "Set value as the new element of this array in indices, which must be a tuple with the desired row and column. num row, column = indices self._info[row][column] = value def__str_(self): "n" Returns a string with the informal representation of this matrix. def diagonal(self): ""meturns a vector with the diagonal of this matrix." def is_square(self): "mse Returns true if the matrix is square def is_upper_triangular(self): "mest Returns true if the matrix is upper triangular" " def is_lower_triangular(self): "men Returns true if the matrix is lower triangular" "n" def__mul_(self, scale): nemeturns the result of multiplying each element of this matrix to scale. def _truediv__(self, scalar): meneturns the result of dividing each element of this array between scalar,", def_neg__(self): nus Returns the result of changing the sign of each element of this array. def__add_(self, other): "meneturn the result of adding this array plus another.." def _sub__(self, other): mm"Returntheresultofsubtractingthisarrayminusanother.= " def__matmul__(self, other): mm"Return the result of the product of this matrix multiplied for another." "wn def associated_minor(self, row, column): "me"Returns a new array resulting from deleting the row and the column. .m+1 def determinant(self): "n" Calculate the value of the determinant of the matrix.." def attached(self): "meturns the attached array." def inverse (self): "mer Returns the inverse matrix. "n