A parameter that filters the returned data on an Insights query. It takes an array of JSON filter objects specifying a field, operator, and value. This lets you limit results (for example, to ads with more than 100 impressions or only active campaigns). Each filter object is of form {'field':'<field_name>','operator':'<op>','value':<value>}.
filtering=[{'field':'ad.effective_status','operator':'IN','value':['ACTIVE']}]
