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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 execute(self, input_data):
        ''' This worker computes meta data for any file type. '''
        raw_bytes = input_data['sample']['raw_bytes']
        self.meta['md5'] = hashlib.md5(raw_bytes).hexdigest()
        self.meta['tags'] = input_data['tags']['tags']
        self.meta['type_tag'] = input_data['sample']['type_tag']
        with magic.Magic() as mag:
            self.meta['file_type'] = mag.id_buffer(raw_bytes[:1024])
        with magic.Magic(flags=magic.MAGIC_MIME_TYPE) as mag:
            self.meta['mime_type'] = mag.id_buffer(raw_bytes[:1024])
        with magic.Magic(flags=magic.MAGIC_MIME_ENCODING) as mag:
            try:
                self.meta['encoding'] = mag.id_buffer(raw_bytes[:1024])
            except magic.MagicError:
                self.meta['encoding'] = 'unknown'
        self.meta['file_size'] = len(raw_bytes)
        self.meta['filename'] = input_data['sample']['filename']
        self.meta['import_time'] = input_data['sample']['import_time']
        self.meta['customer'] = input_data['sample']['customer']
        self.meta['length'] = input_data['sample']['length']

        return self.meta