z iSrSSKJr SSKrSSKJrJr SSKJr SSK J r SSK J r \R(aSSKJr "S S \5rg) zLTransform a circuit with virtual qubits into a circuit with physical qubits.) annotationsN) apply_layout update_layout)TransformationPass)TranspilerError)TranspileLayout)Targetc*\rSrSrSrSrSrSrSrg) ApplyLayoutabApply or update the mapping of virtual qubits to physical qubits in the :class:`.DAGCircuit`. A "layout" in Qiskit is a mapping of virtual qubits (as the user typically creates circuits in terms of) to the physical qubits used to represent them on hardware. This pass has two modes of operation, depending on the state of the ``layout`` and ``post_layout`` keys in the :class:`.PropertySet`: 1. Standard operation: ``post_layout`` is not set. This takes in a :class:`.DAGCircuit` defined over virtual qubits, and rewrites it in terms of physical qubits. In this case, the ``layout`` field must have been chosen by a layout pass (for example :class:`.SetLayout` or :class:`.VF2Layout`), and both it and the :class:`.DAGCircuit` must have been expanded with ancillas (see :class:`.EnlargeWithAncilla` and :class:`.FullAncillaAllocation`). 2. Improving a layout: ``post_layout`` is set (such as by :class:`.VF2PostLayout`). In this case, the ``post_layout`` must already be the correct size. It is interpreted as an _additional_ relabelling on top of the relabelling that is already applied to the input :class:`.DAGCircuit`. After the pass runs, the ``layout`` field will be updated to represent the composition of the two relabellings, as will the :class:`.DAGCircuit` and any final permutation. The ``post_layout`` field will be removed. cURRSS5=nbURX5$URU5$)zRun the ApplyLayout pass on ``dag``. Args: dag (DAGCircuit): DAG to map. Returns: DAGCircuit: A mapped DAG (with physical qubits). Raises: TranspilerError: if no layout is found in ``property_set`` or no full physical qubits. post_layoutN) property_setpop_apply_post_layout _apply_layout)selfdagrs f/home/james-whalen/.local/lib/python3.13/site-packages/qiskit/transpiler/passes/layout/apply_layout.pyrunApplyLayout.run5sD ,,00E EK R**3< <!!#&&c PURRSS5nUc [S5e[U5S[ UR 5SS9-:wa [S5e[U5n[ R"XR5nUcSnURRSS5nOUR5nURnUcUR5n[UUUURVs/sHorUPM snU5nURUR5 U$s snf)NlayoutzJNo 'layout' is found in property_set. Please run a Layout pass in advance.)defaultz)The 'layout' must be full (with ancilla).num_input_qubits)rrrlenmaxget_physical_bitsrfrom_property_setgetrouting_permutation_input_qubit_count num_qubitsrqubitswrite_into_property_set) rrrnum_physical_qubits prev_layout permutationnum_virtual_qubitsqubittranspile_layouts rrApplyLayout._apply_layoutEs!""&&x6 >!\  v;1s6#;#;#=rJJ K!"MN N!&k%77=N=NO  K!%!2!2!6!67I4!P %99;K!,!?!?   %!$!1 '   (+ 3 uE] 3    001B1BC 4s0D#c [R"XR5n[XURVs/sHoBUPM sn5nUR UR5 U$s snf)N)rr"rrr'r()rrrr.qs rrApplyLayout._apply_post_layoutes_*<rBs8S" G;84 (O$Or