meters>
If the argument of the <tt>put</tt> function is a table, the function
expects at least the fields <tt>host</tt>, <tt>source</tt>, and one of 
<tt>argument</tt> or <tt>path</tt> (<tt>argument</tt> takes
precedence). <tt>Host</tt> is the server to connect to. <tt>Source</tt> is
the <em>simple</em> 
<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
source that will provide the contents to be uploaded. 
<tt>Argument</tt> or
<tt>path</tt> give the target path to the resource in the se