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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 format_file_params(files):
        '''
            Utility method for formatting file parameters for transmission
        '''
        files_payload = {}
        if files:
            for idx, filename in enumerate(files):
                files_payload["file[" + str(idx) + "]"] = open(filename, 'rb')
        return files_payload