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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 html_for_cgi_argument(argument, form):
 """Returns an HTML snippet for a CGI argument. Args: argument: A string representing an CGI argument name in a form. form: A CGI FieldStorage object. Returns: String HTML representing the CGI value and variable. """

    value = form[argument].value if argument in form else None
    return KEY_VALUE_TEMPLATE.format(argument, value)