You can search for identifiers within the package.
in-package search v0.2.0
module Alg = Alg
module Band = Band
module Data_set = Data_set
module Data_source = Data_source
module Driver = Driver
module Feature = Feature
module Field = Field
module Geo_transform = Geo_transform
module Geometry = Geometry
module Layer = Layer
module Lib = Lib
module Spatial_reference = Spatial_reference
module T = T
module Transform = Transform
module Vsi = Vsi
module Warp = Warp