Another asumption: The object that is in $q is an object created by one of the many CGI modules that exist. A well known one that I have used is CGI.pm by Lincoln Stein. http://stein.cshl.org/WWW/software/CGI/
The syntax that is used as well as the name of the method
"param" suggest it is CGI.pm.
This method returns several items of in about the parameters submitted from a form including its values. Depending on how
the object is created all of the parameters that are submitted will have values.
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