Function cumulus_client_consensus_common::search_child_branches_for_parents

pub fn search_child_branches_for_parents<Block: BlockT>(
    frontier: Vec<PotentialParent<Block>>,
    maybe_route_to_last_pending: Option<TreeRoute<Block>>,
    included_header: Block::Header,
    pending_hash: Option<Block::Hash>,
    backend: &impl Backend<Block>,
    max_depth: usize,
    ignore_alternative_branches: bool,
    rp_ancestry: Vec<(Hash, Hash)>,
    potential_parents: Vec<PotentialParent<Block>>,
) -> Vec<PotentialParent<Block>>

Start search for child blocks that can be used as parents.