* Allow templates to be decomposed

* Add TODO to clean

* Update changelog

* Fix pylint error

Co-authored-by: Edward Jiang <edward.jiang@resident.xanadu.ai>

* Add UserWarning to ExpvalCost and catch said warning in all tests containing ExpvalCost

* added warning in doc string

* added to the changelog in 0.23.1

* Update pennylane/vqe/vqe.py

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* Update pennylane/vqe/vqe.py

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* Update pennylane/vqe/vqe.py

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* Update pennylane/vqe/vqe.py

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* Update tests/optimize/test_qng.py

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* Update tests/qchem/of_tests/test_convert.py

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* Update tests/test_qaoa.py

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* Update tests/test_vqe.py

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* Update tests/transforms/test_adjoint_metric_tensor.py

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* Update tests/optimize/test_optimize_shot_adapative.py

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* overlooked to catch the new warning in test_dipole_of

* switched to the right changelog

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* update logic

* update logic

* test case

* test assertion

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* Update doc

* Update

* Update pennylane/ops/qubit/parametric_ops.py

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* Apply suggestions from code review

* CHange

* Typo

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* Support classical fisher gradients when using Autograd

* Update doc/releases/changelog-dev.md

* added test for jax and autograd

* black

* added xfail tests

* added comment in doc string about torch and tf not diffable

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* Support classical fisher gradients when using Autograd

* Update doc/releases/changelog-dev.md

* added test for jax and autograd

* black

* added xfail tests

* added comment in doc string about torch and tf not diffable

* Fix differentiability for tensorflow and torch

* Remove warning

* Fix TF not iterable error

* Trigger CI

* added example in doc-string about diffability

* close-block becomes code-block lol

* Update pennylane/qinfo/transforms.py

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* Change pytest mark

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* removed hardware argument, adapted doc string

* updated tests

* black

* Update pennylane/qinfo/transforms.py

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* Update pennylane/qinfo/transforms.py

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* add default.qubit condition and change doc string

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* Add documentation for new qinfo measurements

* Add docs for finite diff

* Fix JAX tests

* Change param shift to red

* Move entropy param shift tests

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* private func has no indices arg

* update the circuit name in the example

* reduced_dm doc update

* correct Hamiltonian creation for classical Fisher

* Delete exactly one space from reduced_dm docstring to correct rendering

* Update outputting quantum_fisher example

* fixed hamiltonian wire bug

* changelog

* Update docs

* Add double backticks

* Add other backtick :xd:

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* fix rendering of matrix rep of ECR

* lint

* trigger ci

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* Ising doc

* Move entropy test

* Math doc

* Measurement doc

* qinfo doc

* Update pennylane/qinfo/transforms.py

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* Apply suggestions from code review

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* Update pennylane/math/quantum.py

* Update

* Fix kwargs for fidelity (#2740)

* update

* Typo

* Update pennylane/qinfo/transforms.py

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* Reduced dm

* Apply suggestions from code review

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* remove reduce dm

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Co-authored-by: Christina Lee <christina@xanadu.ai>

…ylane into ops-module-docs

* add quantum info measurements to introduction page

* minor doc fixes

* more minor fixes

* revert kwargs change

* Apply suggestions from code review

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…ylane into ops-module-docs

…ylane into ops-module-docs

…ylane into ops-module-docs

…ylane into ops-module-docs

…enerated by sphinx

…ylane into ops-module-docs

…ylane into ops-module-docs

Co-authored-by: antalszava <antalszava@gmail.com>

Co-authored-by: antalszava <antalszava@gmail.com>

Co-authored-by: antalszava <antalszava@gmail.com>