---
title: UnitarySynthesisPluginManager (v0.46)
description: API reference for qiskit.transpiler.passes.synthesis.plugin.UnitarySynthesisPluginManager in qiskit v0.46
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit/0.46/qiskit.transpiler.passes.synthesis.plugin.UnitarySynthesisPluginManager
---

# UnitarySynthesisPluginManager

*class* `qiskit.transpiler.passes.synthesis.plugin.UnitarySynthesisPluginManager`

[GitHub](https://github.com/qiskit/qiskit/tree/stable/0.46/qiskit/transpiler/passes/synthesis/plugin.py)

Bases: [`object`](https://docs.python.org/3/library/functions.html#object)

Unitary Synthesis plugin manager class

This class tracks the installed plugins, it has a single property, `ext_plugins` which contains a list of stevedore plugin objects.