Function sp_session::generate_initial_session_keys

pub fn generate_initial_session_keys<Block, T>(
    client: Arc<T>, 
    at: &BlockId<Block>, 
    seeds: Vec<String>
) -> Result<(), ApiError> where
    Block: BlockT,
    T: ProvideRuntimeApi<Block>,
    T::Api: SessionKeys<Block>, 

Generate the initial session keys with the given seeds, at the given block and store them in the client’s keystore.