---
title: passes (latest version)
description: API reference for qiskit_addon_utils.noise_management.post_selection.transpiler.passes in the latest version of qiskit-addon-utils
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit-addon-utils/noise-management-post-selection-transpiler-passes
---

# post\_selection\_transpiler\_passes

`qiskit_addon_utils.noise_management.post_selection.transpiler.passes`

A submodule with transpilation passes for post selection.

|                                                                                                                                                                                                                                          |                                                                    |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------ |
| [`AddSpectatorMeasures`](/docs/api/qiskit-addon-utils/noise-management-post-selection-transpiler-passes-add-spectator-measures "qiskit_addon_utils.noise_management.post_selection.transpiler.passes.AddSpectatorMeasures")              | Add measurements on spectator qubits.                              |
| [`AddPostSelectionMeasures`](/docs/api/qiskit-addon-utils/noise-management-post-selection-transpiler-passes-add-post-selection-measures "qiskit_addon_utils.noise_management.post_selection.transpiler.passes.AddPostSelectionMeasures") | Add a post selection measurement after every terminal measurement. |
| [`XSlowGate`](/docs/api/qiskit-addon-utils/noise-management-post-selection-transpiler-passes-x-slow-gate "qiskit_addon_utils.noise_management.post_selection.transpiler.passes.XSlowGate")                                               | The x-slow gate.                                                   |