# configuring backends

```{eval-rst}
.. autoclass:: qnexus.models.HeliosConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.HeliosEmulatorConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.SimpleRuntime
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.HeliosRuntime
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.NoErrorModel
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.DepolarizingErrorModel
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.QSystemErrorModel
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.HeliosCustomErrorModel
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.StatevectorSimulator
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.StabilizerSimulator
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.MatrixProductStateSimulator
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.CoinflipSimulator
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.ClassicalReplaySimulator
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.SeleneConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.SelenePlusConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.QuantinuumConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.AerConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.AerStateConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.AerUnitaryConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.BraketConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.IBMQConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.IBMQEmulatorConfig
    :exclude-members:
```

```{eval-rst}
.. autoclass:: qnexus.models.QulacsConfig
    :exclude-members:
```

```{eval-rst}
.. autoenum:: qnexus.models.language.Language
```