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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 bubble_to_js(bblfile:str, jsdir:str=None, oriented:bool=False, **style):
 """Write in jsdir a graph equivalent to those depicted in bubble file"""

    js_converter.bubble_to_dir(bblfile, jsdir, oriented=bool(oriented), **style)
    return jsdir