persisting them for subsequent uses by the target language.<br>
The language argument must be one of the literal strings &quot;eagle&quot;,<br>
&quot;tcl&quot;, or &quot;client&quot;.  The version argument must be one of the<br>
literal strings &quot;8.4&quot;, &quot;8.5&quot;, or &quot;8.6&quot; when the language is &quot;tcl&quot;<br>
-OR- the literal string &quot;1.0&quot; when the language is either &quot;eagle&quot;<br>
or &quot;client&quot;.  The platform argument must be an empty string -OR-<br>
one of the literal strings &quot;msil&quot; or &quot;neutral&quot;, or one of the values<br>
returned by the [getPlatform] procedure..  An empty string means<br>
that the associated package does not require a specific platform.<br>
The fileNames argument must be a well-formed list of file names to<br>
download, each one relative to the language and version-specific<br>
directory on the package file server.  The options argument must<br>
be a dictionary of name/value pairs.  The -persistent option should<br>
be non-zero if the downloaded files should be saved to permanent<br>
storage for subsequent use.  The -usePgp option should be non-zero<br>