For more information please visit https://developers.klaviyo.com/en/v2026-07-15/reference/api-overview#filtering
Allowed field(s)/operator(s):
id: any, equals (string)
name: any, equals (string)
created: greater-or-equal, greater-than, less-or-equal, less-than (date-time)
updated: greater-or-equal, greater-than, less-or-equal, less-than (date-time)
definition.content_type: equals (allowed values: 'block', 'section')
definition.type: equals (allowed values: 'button', 'coupon', 'drop_shadow', 'header', 'horizontal_rule', 'html', 'image', 'product', 'review', 'social', 'spacer', 'split', 'table', 'text', 'unsupported', 'video')
