def _attach_files(filepaths, email_):
    """Take a list of filepaths and attach the files to a MIMEMultipart.

    Args:
        filepaths (list(str)): A list of filepaths.
        email_ (email.MIMEMultipart): A MIMEMultipart email_.
    """
    for filepath in filepaths:
        base = os.path.basename(filepath)
        with open(filepath, "rb") as file:
            part = MIMEApplication(file.read(), Name=base)
            part["Content-Disposition"] = 'attachment; filename="%s"' % base
            email_.attach(part)
Take a list of filepaths and attach the files to a MIMEMultipart.

    Args:
        filepaths (list(str)): A list of filepaths.
        email_ (email.MIMEMultipart): A MIMEMultipart email_.