    def _clear_transcript(cls, transcript):
        """
        Keep in transcript only numbers and operators
        """
        cleaned_transcript = ''
        for word in transcript.split():
            if word.isdigit() or word in math_symbols_mapping.values():
                # Add numbers
                cleaned_transcript += word
            else:
                # Add operators
                cleaned_transcript += math_symbols_mapping.get(word, '')
        return cleaned_transcript
Keep in transcript only numbers and operators
src/jarvis/jarvis/skills/collection/math.py