SharePoint SPFX connected web parts using Dynamic data

I have requirement of connecting to SharePoint Online file viewer webpart from a custom webpart. Plan is to build a custom spfx webpart with dynamic data and file viewer web part can connect to the new webpart which we are developing. According to this https://docs.microsoft.com/en-us/sharepoint/dev/spfx/dynamic-data we need to know the properties which we need to emit from the new webpart which we need to develop. Is there anyway we can figure format and properties expecting by the file viewer webpart.