Fix imports

Author: lkdvos

ext/TensorKitChainRulesCoreExt/TensorKitChainRulesCoreExt.jl

@@ -3,6 +3,7 @@ module TensorKitChainRulesCoreExt
 using TensorOperations
 using VectorInterface
 using TensorKit
+using TensorKit: foreachblock
 using ChainRulesCore
 using LinearAlgebra
 using TupleTools
@@ -11,6 +12,10 @@ import TensorOperations as TO
 using TensorOperations: promote_contract, tensoralloc_add, tensoralloc_contract
 using VectorInterface: promote_scale, promote_add
 
+using MatrixAlgebraKit
+using MatrixAlgebraKit: TruncationStrategy,
+                        svd_compact_pullback!, eig_full_pullback!, eigh_full_pullback!
+
 include("utility.jl")
 include("constructors.jl")
 include("linalg.jl")

ext/TensorKitChainRulesCoreExt/factorizations.jl

@@ -1,5 +1,3 @@
-using MatrixAlgebraKit: svd_compact_pullback!, eig_full_pullback!, eigh_full_pullback!
-
 # Factorizations rules
 # --------------------
 function ChainRulesCore.rrule(::typeof(TensorKit.tsvd!), t::AbstractTensorMap;