post_summary (if you pass the optional summaryField argument)
process ( assetId,templateId [,numPosts,orderByField,descendingOrder,summaryField,dateField] ) process takes 2 required parameters and 5 optional ones.
assetId The assetId of the parent of the collaboration system(s) from which recent posts should be pulled. If only pulling from one CS, you can specify its assetId directly.
templateId The templateId of the template the recent posts should be displayed in.
numPosts The number of recent posts to pull; default is 3.
orderByVar The name of the template variable to order the posts by; default is none.
descendingOrder If set to a true value (i.e. 1), posts will be in descending order.
summaryField The name of the field to use for the summary; default is none.
dateField The name of the field to get the date of the post from; default is dateSubmitted.