export StructuralTangent

Author: oxinabox

src/ChainRulesCore.jl

@@ -14,7 +14,7 @@ export ProjectTo, canonicalize, unthunk, zero_tangent  # tangent operations
 export add!!, is_inplaceable_destination  # gradient accumulation operations
 export ignore_derivatives, @ignore_derivatives
 # tangents
-export Tangent, MutableTangent, NoTangent, InplaceableThunk, Thunk, ZeroTangent, AbstractZero, AbstractThunk
+export StructuralTangent, Tangent, MutableTangent, NoTangent, InplaceableThunk, Thunk, ZeroTangent, AbstractZero, AbstractThunk
 
 include("debug_mode.jl")
 

src/tangent_types/structural_tangent.jl

@@ -10,7 +10,6 @@ as an object with mirroring fields.
     `MutableTangent` is an experimental feature.
     Thus use of `StructuralTangent` (rather than `Tangent` directly) is also experimental.
     While this notice remains it may have changes in behavour, and interface in any _minor_ version of ChainRulesCore.
-    
 """
 abstract type StructuralTangent{P} <: AbstractTangent end
 
@@ -447,4 +446,4 @@ Base.hash(tangent::MutableTangent, h::UInt64) = hash(backing(tangent), h)
 function Base.:(==)(t1::MutableTangent{T1}, t2::MutableTangent{T2}) where {T1, T2}
     typeintersect(T1, T2) == Union{} && return false
     backing(t1)==backing(t2)
-end
+end