OptionalpriorityFilter by task priority
OptionalsourceFilter by source agent ID
OptionalstatusFilter by task status (single status or array of statuses)
OptionaltargetFilter by target agent ID
OptionaltaskFilter by task type (e.g., 'analyze', 'synthesize', 'transform')
OptionalthreadFilter by thread ID
Filter type for A2A task notifications. Allows filtering by task status, task type, agent, or priority.