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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def inject_visualization_javascript(tree_width=1200, tree_height=400, tree_node_radius=10):
 """ In an Ipython notebook, show SST trees using the same Javascript code as used by Jason Chuang's visualisations. """

        from .javascript import insert_sentiment_markup
        insert_sentiment_markup(tree_width=tree_width, tree_height=tree_height, tree_node_radius=tree_node_radius)