ADVERTISER = 'advertiser'
CAMPAIGN = 'campaign'
BUDGET = 'budget'
AD = 'ad'
AD_HEADLINE = 'ad_headline'
AD_PREVIEW_IMAGE = 'ad_preview_image'
AD_CONTENT = 'ad_content'
PUBLISHER = 'publisher'
PUBLICATION = 'publication'
PUBLICATION_URL = 'publication_url'  # REQUIRES PUBLICATION
PLACEMENT = 'placement'
CATEGORY = 'category'  # PLACEMENT VERTICAL
DEVICE = 'device'
COUNTRY = 'country'
REGION = 'region'
DMA = 'dma'
