code: func restoreACLBootstrap(header *snapshotHeader, restore *state.Restore, decoder *codec.Decoder) error {
  	var req structs.ACLBootstrap
  	if err := decoder.Decode(&req); err != nil {
  		return err
  	}
  
  	// With V2 ACLs whether bootstrapping has been performed is stored in the index table like nomad
  	// so this "restores" into that index table.
  	return restore.IndexRestore(&state.IndexEntry{Key: "acl-token-bootstrap", Value: req.ModifyIndex})
  }
docs: // DEPRECATED (ACL-Legacy-Compat) - remove once v1 acl compat is removed