human
Solve the following python programming problem given the following code:
def create_walk_graph(self, walk_graph) : 
    self.walk_graph = walk_graph.copy () 
    two_way_line_options = dict (fill = '#00ff00', width = 2, tags = 'walk_graph') 
    one_way_line_options = dict (fill = '#ff0000', width = 2, tags = 'walk_graph') 
    def tile_center(coord) : 
        return [((coord.x + 0.5) * self.tile_size_x), ((coord.y + 0.5) * self.tile_size_x)] 
for y in range (self.tile_map.height) : 
        for x in range (self.tile_map.width) : 
            coord = Coord (one_way_line_options, y) 
            can_reach = walk_graph.get (coord) 
            if (not can_reach) : 
                continue 
for other_coord in can_reach : 
                two_way = (coord in walk_graph.get (other_coord, [])) 
                if two_way : 
                    self.canvas.create_line (* (tile_center (coord) + tile_center (other_coord)), ** two_way_line_options) 
else : 
                    self.canvas.create_line (* (tile_center (coord) + tile_center (other_coord)), ** one_way_line_options) 

    
    

    Fix the buggy line: coord = Coord (one_way_line_options, y)
assistant
#Here is Python program to fix the buggy line: coord = Coord (one_way_line_options, y)
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coord = Coord (x, y)