# API documentation ```{eval-rst} .. autoclass:: pytket.extensions.qiskit.IBMQBackend :special-members: __init__ :show-inheritance: :members: ``` ```{eval-rst} .. autoclass:: pytket.extensions.qiskit.IBMQEmulatorBackend :special-members: __init__ :show-inheritance: :members: ``` ```{eval-rst} .. autoclass:: pytket.extensions.qiskit.AerBackend :special-members: __init__ :inherited-members: :members: ``` ```{eval-rst} .. autoclass:: pytket.extensions.qiskit.AerStateBackend :special-members: __init__ :inherited-members: :members: ``` ```{eval-rst} .. autoclass:: pytket.extensions.qiskit.AerUnitaryBackend :special-members: __init__ :inherited-members: :members: ``` ```{eval-rst} .. autoclass:: pytket.extensions.qiskit.AerDensityMatrixBackend :special-members: __init__ :inherited-members: :members: ``` ```{eval-rst} .. automodule:: pytket.extensions.qiskit :members: qiskit_to_tk, tk_to_qiskit, process_characterisation ``` ```{eval-rst} .. automodule:: pytket.extensions.qiskit.tket_backend :show-inheritance: :members: :special-members: __init__ ``` ```{eval-rst} .. automodule:: pytket.extensions.qiskit.backends.crosstalk_model :members: CrosstalkParams ``` ```{eval-rst} .. automodule:: pytket.extensions.qiskit.tket_pass :special-members: __init__ :members: ``` ```{eval-rst} .. automodule:: pytket.extensions.qiskit.tket_job :special-members: __init__ :members: ``` ```{eval-rst} .. automodule:: pytket.extensions.qiskit.backends.config :members: ```