human
Solve the following python programming problem given the following code:
def __init__(self, master, vtk_table, on_change_color_table = None) : 
    'Initialize the gradient editor window.

        Parameters
        ----------
        master
            Owning widget, for example a tk root object.
        VtkTable
            Instance of vtkLookupTable, designating the table which is
            to be edited.
        OnChangeColorTable
            Callback function taking no arguments. Called
            when the color table was changed and rendering is requested.' 
    gradient_preview_width = 300 
    gradient_preview_height = 50 
    channel_function_width = gradient_preview_width 
    channel_function_height = 80 
    tk.Toplevel.__init__ (self, master) 
    self.title ('Color Gradient Editor') 
    self.minsize ((gradient_preview_width + 4), ((gradient_preview_height + (5 * spacer)) + 50)) 
    self.gradient_table = GradientTable (gradient_preview_width) 
    self.vtk_color_table = vtk_table 
    self.gradient_control = GradientControl (self, self.gradient_table, gradient_preview_width, gradient_preview_height) 
    self.gradient_control.grid (row = 0, column = 1, sticky = 'we') 
    def on_gradient_table_changed(final_update) : 
        self.function_control_rgb.update () 
        for control in self.function_controls_hsv : 
            control.update () 
if (final_update or (1 == self.show_instant_gradients.get ())) : 
            self.gradient_control.update () 
if (final_update or (1 == self.show_instant_feedback.get ())) : 
            self.gradient_table.store_to_vtk_lookup_table (self.vtk_color_table) 
            on_change_color_table () 
self.on_gradient_table_changed = on_gradient_table_changed 
    self.function_control_rgb = FunctionControl (self, self.gradient_table, 'rgb', channel_function_width, channel_function_height, on_gradient_table_changed) 
    label = tk.Label (self, text = 'rgb') 
    label.grid (row = 1, column = 0) 
    self.function_control_rgb.grid (row = 1, column = 1, sticky = 'we') 
    self.function_controls_hsv = [] 
    for it in [('hue',...

    
    

    Fix the buggy line: self.minsize ((gradient_preview_width + 4), ((gradient_preview_height + (5 * spacer)) + 50))
assistant
#Here is Python program to fix the buggy line: self.

self.minsize ((gradient_preview_width + 4), ((gradient_preview_height + (5 * channel_function_height)) + 50))