You can search for identifiers within the package.
in-package search v0.2.0
oxbow.river
Server.Layer_shell
module River_layer_shell_v1 : sig ... end
River layer shell global interface.
module River_layer_shell_output_v1 : sig ... end
Layer shell output state.
module River_layer_shell_seat_v1 : sig ... end
Layer shell seat state.