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use crate::prelude::*; /// Query the _headers_ of a remote agent's chain. /// /// The agent activity is only the headers of their source chain. /// The agent activity is held by the neighbourhood centered on the agent's public key, rather than a content hash like the rest of the DHT. /// /// The agent activity can be filtered with [ `ChainQueryFilter` ] like a local chain query. pub fn get_agent_activity( agent: AgentPubKey, query: ChainQueryFilter, request: ActivityRequest, ) -> ExternResult<AgentActivity> { host_call::<GetAgentActivityInput, AgentActivity>( __get_agent_activity, GetAgentActivityInput::new(agent, query, request), ) } /// Walks the source chain in reverse (latest to oldest) filtering by header and/or entry type /// /// Given a header and entry type, returns an [ `Vec<Element>` ] /// /// @todo document this better with examples /// @todo do we want to return elements rather than hashes? /// @todo implement cap grant/claim usage in terms of query pub fn query(filter: ChainQueryFilter) -> ExternResult<Vec<Element>> { host_call::<ChainQueryFilter, Vec<Element>>(__query, filter) }