Ok, I see in the 'How to Use' under the managed source I created, provides a CSDL filter to use. However, when I use the following as my csdl filte .... :
csdl = 'interaction.type == "facebook_page"'
fltr = client.compile(csdl)
I receive this error from the datasift python library - datasift.exceptions.DataSiftApiException: The target interaction.type does not exist
However, the "How to Use" section says -
This Managed Source will also appear in any Filter where the Facebook Pages source is filtered for:
interaction.type == "facebook_page"