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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 make_report(self, sections_first=True, section_header_params=None):
 """Create the pdf document with name `self.name + '.pdf'`. Parameters sections_first : bool If True (default), text and images with sections are presented first and un-sectioned content is appended afterword. If False, sectioned text and images will be placed before the sections. section_header_params : dict or None Optionally overwrite/extend the default formatting for the section headers. Default is None. """

        full_story = list(self._preformat_text(self.title, style='Title',
                                               fontsize=18, alignment='center'))

        # Set the default section header parameters
        if section_header_params is None:
            section_header_params = {'style': 'h1', 'fontsize': 14,
                                     'alignment': 'center'}

        # Merge the sections and the rest of the story.
        if sections_first:
            full_story += self._make_sections(**section_header_params)
            full_story += self.story
        else:
            full_story += self.story
            full_story += self._make_sections(**section_header_params)

        fname = self.name + '.pdf'
        doc = SimpleDocTemplate(fname, pagesize=letter,
                                rightMargin=72, leftMargin=72,
                                topMargin=72, bottomMargin=18)
        doc.build(full_story)
        return fname