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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 create_graphics(self):
 """Create images related to this BAM file using GnuPlot."""


        rnftools.utils.shell('"{}" "{}"'.format("gnuplot", self._gp_fn))

        if self.render_pdf_method is not None:
            svg_fn = self._svg_fn
            pdf_fn = self._pdf_fn
            svg42pdf(svg_fn, pdf_fn, method=self.render_pdf_method)