Refactor exports

Project.toml

@@ -19,7 +19,7 @@ GR = "0.46, 0.47, 0.48, 0.49, 0.50, 0.51, 0.52, 0.53"
 IntervalSets = "0.5"
 MacroTools = "0.5"
 OrdinaryDiffEq = "5"
-ReinforcementLearningBase = "0.9.1"
+ReinforcementLearningBase = "0.9.2"
 Requires = "1.0"
 StatsBase = "0.32, 0.33"
 julia = "1.3"

src/environments/examples/BitFlippingEnv.jl

@@ -1,14 +1,11 @@
-export BitFlippingEnv, GoalState
+export BitFlippingEnv
 
 """
 In Bit Flipping Environment we have n bits. The actions are 1 to n where executing i-th action flips the i-th bit of the state. For every episode we sample uniformly and inital state as well as the target state.
 
 Refer [Hindsight Experience Replay paper](https://arxiv.org/pdf/1707.01495.pdf) for the motivation behind the environment.
 """
 
-struct GoalState{T} <: RLBase.AbstractStateStyle end
-GoalState() = GoalState{Any}()
-
 struct BitFlippingEnv <: AbstractEnv
     N::Int
     rng::AbstractRNG