z iu1SrSSKJr SSKJr SSKrSSKJrJrJr SSK J r SSK J r "SS 5r "S S \ \5rg) z)Backend abstract interface for providers.)ABC)abstractmethodN)ListUnionTuple) Instruction)QubitPropertiesc\rSrSrSrSrSrg)BackendaBase common type for all versioned Backend abstract classes. Note this class should not be inherited from directly, it is intended to be used for type checking. When implementing a provider you should use the versioned abstract classes as the parent class and not this class directly. rN)__name__ __module__ __qualname____firstlineno____doc__version__static_attributes__r R/home/james-whalen/.local/lib/python3.13/site-packages/qiskit/providers/backend.pyr r sGrr c \rSrSrSrSrSS\S\S\RS\4S jjr\ S \ \ \ \ \ 44S j5r\ S \ \ 4S j5r\ S \ \4S j5r\ \S55r\ S \ 4Sj5r\ S5r\ S5r\ \S55r\\S55r\ S \\S44Sj5r\ S \4Sj5r\ S \ \ \ 4Sj5rS\\ \ \ 4S \\\ \44SjrSr \ S5r!\ S5r"\S5r#Sr$g) BackendV2'aAbstract class for Backends This abstract class is to be used for all Backend objects created by a provider. This version differs from earlier abstract Backend classes in that the configuration attribute no longer exists. Instead, attributes exposing equivalent required immutable properties of the backend device are added. For example ``backend.configuration().n_qubits`` is accessible from ``backend.num_qubits`` now. The ``options`` attribute of the backend is used to contain the dynamic user configurable options of the backend. It should be used more for runtime options that configure how the backend is used. For example, something like a ``shots`` field for a backend that runs experiments which would contain an int for how many shots to execute. A backend object can optionally contain methods named ``get_translation_stage_plugin`` and ``get_scheduling_stage_plugin``. If these methods are present on a backend object and this object is used for :func:`~.transpile` or :func:`~.generate_preset_pass_manager` the transpilation process will default to using the output from those methods as the scheduling stage and the translation compilation stage. This enables a backend which has custom requirements for compilation to specify a stage plugin for these stages to enable custom transformation of the circuit to ensure it is runnable on the backend. These hooks are enabled by default and should only be used to enable extra compilation steps if they are **required** to ensure a circuit is executable on the backend or have the expected level of performance. These methods are passed no input arguments and are expected to return a ``str`` representing the method name which should be a stage plugin (see: :mod:`qiskit.transpiler.preset_passmanagers.plugin` for more details on plugins). The typical expected use case is for a backend provider to implement a stage plugin for ``translation`` or ``scheduling`` that contains the custom compilation passes and then for the hook methods on the backend object to return the plugin name so that :func:`~.transpile` will use it by default when targetting the backend. Subclasses of this should override the public method :meth:`run` and the internal :meth:`_default_options`: .. automethod:: _default_options Nname description online_datebackend_versionc UR5UlXlU(aCUH!nXpR;dM[SUS35e URR"S0UD6 X lX0lX@lXPlSUl g)aiInitialize a BackendV2 based backend Args: provider: An optional backwards reference to the provider object that the backend is from name: An optional name for the backend description: An optional description of the backend online_date: An optional datetime the backend was brought online backend_version: An optional backend version string. This differs from the :attr:`~qiskit.providers.BackendV2.version` attribute as :attr:`~qiskit.providers.BackendV2.version` is for the abstract :attr:`~qiskit.providers.Backend` abstract interface version of the object while ``backend_version`` is for versioning the backend itself. fields: kwargs for the values to use to override the default options. Raises: AttributeError: If a field is specified that's outside the backend's options Options field  is not valid for this backendNr ) _default_options_options _providerAttributeErrorupdate_optionsrrrr _coupling_map)selfproviderrrrrfieldsfields r__init__BackendV2.__init__Ss>--/ !  -(>%@^)_``  MM ( ( 26 2 "&2&0. "rreturnc.URR$)zRA list of Instruction tuples on the backend of the form ``(instruction, (qubits)``)target instructionsr(s rr1BackendV2.instructionss{{'''rc@[URR5$)zSA list of :class:`~qiskit.circuit.Instruction` instances that the backend supports.)listr0 operationsr2s rr6BackendV2.operationssDKK**++rc@[URR5$)z6A list of instruction names that the backend supports.)r5r0operation_namesr2s rr9BackendV2.operation_namessDKK//00rcg)zLA :class:`qiskit.transpiler.Target` object for the backend. :rtype: Target Nr r2s rr0BackendV2.targets rc.URR$)z,Return the number of qubits the backend has.)r0 num_qubitsr2s rr>BackendV2.num_qubitss{{%%%rcrURcURR5UlUR$)z9Return the :class:`~qiskit.transpiler.CouplingMap` object)r'r0build_coupling_mapr2s r coupling_mapBackendV2.coupling_maps1    %!%!?!?!AD !!!rc6URR5$)zCReturn the :class:`~qiskit.transpiler.InstructionDurations` object.)r0 durationsr2s rinstruction_durationsBackendV2.instruction_durationss{{$$&&rcg)zlThe maximum number of circuits that can be run in a single job. If there is no limit this will return None Nr r2s r max_circuitsBackendV2.max_circuitss rcg)a:Return the default options This method will return a :class:`qiskit.providers.Options` subclass object that will be used for the default options. These should be the default parameters to use for the options of the backend. Returns: qiskit.providers.Options: A options object with default values set Nr )clss rr"BackendV2._default_optionss rc.URR$)zReturn the system time resolution of input signals This is required to be implemented if the backend supports Pulse scheduling. Returns: The input signal timestep in seconds. If the backend doesn't define ``dt``, ``None`` will be returned. )r0dtr2s rrO BackendV2.dts{{~~rc[e)zReturn the system time resolution of output signals Returns: The output signal timestep in seconds. Raises: NotImplementedError: if the backend doesn't support querying the output signal timestep NotImplementedErrorr2s rdtm BackendV2.dtms "!rc[e)a3Return the grouping of measurements which are multiplexed This is required to be implemented if the backend supports Pulse scheduling. Returns: The grouping of measurements which are multiplexed Raises: NotImplementedError: if the backend doesn't support querying the measurement mapping rRr2s rmeas_mapBackendV2.meas_maps "!rqubitcURRc[e[U[5(aURRU$UVs/sHo RRUPM sn$s snf)aReturn QubitProperties for a given qubit. If there are no defined or the backend doesn't support querying these details this method does not need to be implemented. Args: qubit: The qubit to get the :class:`.QubitProperties` object for. This can be a single integer for 1 qubit or a list of qubits and a list of :class:`.QubitProperties` objects will be returned in the same order Returns: The :class:`~.QubitProperties` object for the specified qubit. If a list of qubits is provided a list will be returned. If properties are missing for a qubit this can be ``None``. Raises: NotImplementedError: if the backend doesn't support querying the qubit properties )r0qubit_propertiesrS isinstanceint)r(rYqs rr[BackendV2.qubit_propertiessa8 ;; ' ' /% % eS ! !;;//6 69>?A ,,Q/???s"A5c UH-n[URU5(aM [SUS35e URR"S0UD6 g)a`Set the options fields for the backend This method is used to update the options of a backend. If you need to change any of the options prior to running just pass in the kwarg with the new value for the options. Args: fields: The fields to update the options Raises: AttributeError: If the field passed in is not part of the options r r!Nr )hasattrr#r%r&)r(r*r+s r set_optionsBackendV2.set_optionssKE4==%00$~eWrBrFrI classmethodr"rfloatrOrTrWr r[rbrer)rkrr rrrr's0'RG)-# 0"0" 0" && 0"  0"d(d5eCj)@#AB((,D-,,1c11  &C&&"" ''       E%+&   "U " " "$tCy/ " " @3S >* @ _ 55 6 @D/&  rr)rabcrrrntypingrrrqiskit.circuit.gaterqiskit._accelerate.targetr r rr rrrvs;0%%+5  j j r