human
Solve the following python programming problem given the following code:
def _write_CellArray(self, out) : 
    code = "
        def from_array(self, arr):
            '''Set the value of the data array using the passed
            Numeric array or Python list.  This is implemented
            efficiently.
            '''
            array_handler.array2vtkCellArray(arr, self._vtk_obj)
            self.update_traits()

        def to_array(self):
            '''Return the object as a Numeric array.'''
            return array_handler.vtk2array(self._vtk_obj.GetData())
        " 
    out.write (self.indent.format (self)) 

    
    

    Fix the buggy line: out.write (self.indent.format (self))
assistant
#Here is Python program to fix the buggy line: out.

out.write (self.indent.format (code))