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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 get_text_contents(self):
 """ This attempts to figure out what the encoding of the text is based upon the BOM bytes, and then decodes the contents so that it's a valid python string. """

        contents = self.get_contents()
        # The behavior of various decode() methods and functions
        # w.r.t. the initial BOM bytes is different for different
        # encodings and/or Python versions.  ('utf-8' does not strip
        # them, but has a 'utf-8-sig' which does; 'utf-16' seems to
        # strip them; etc.)  Just sidestep all the complication by
        # explicitly stripping the BOM before we decode().
        if contents[:len(codecs.BOM_UTF8)] == codecs.BOM_UTF8:
            return contents[len(codecs.BOM_UTF8):].decode('utf-8')
        if contents[:len(codecs.BOM_UTF16_LE)] == codecs.BOM_UTF16_LE:
            return contents[len(codecs.BOM_UTF16_LE):].decode('utf-16-le')
        if contents[:len(codecs.BOM_UTF16_BE)] == codecs.BOM_UTF16_BE:
            return contents[len(codecs.BOM_UTF16_BE):].decode('utf-16-be')
        try:
            return contents.decode('utf-8')
        except UnicodeDecodeError as e:
            try:
                return contents.decode('latin-1')
            except UnicodeDecodeError as e:
                return contents.decode('utf-8', error='backslashreplace')