def is_known_project_format(format_name: str) -> bool:
    """Check if a data format is in the project_io registry.

    Parameters
    ----------
    format_name : str
        Name of the project io plugin under which it is registered.

    Returns
    -------
    bool
        Whether or not the data format is a registered project io plugin.
    """
    return is_registered_plugin(plugin_register_key=format_name,
                                plugin_registry=__PluginRegistry.project_io)
def is_known_model(model_type: str) -> bool:
    """Check if a model is in the model registry.

    Parameters
    ----------
    model_type : str
        Name of the model under which it is registered.

    Returns
    -------
    bool
        Whether or not the model is registered.
    """
    return is_registered_plugin(
        plugin_register_key=model_type, plugin_registry=__PluginRegistry.model
    )
def is_known_megacomplex(megacomplex_type: str) -> bool:
    """Check if a megacomplex is in the megacomplex registry.

    Parameters
    ----------
    megacomplex_type : str
        Name of the megacomplex under which it is registered.

    Returns
    -------
    bool
        Whether or not the megacomplex is registered.
    """
    return is_registered_plugin(
        plugin_register_key=megacomplex_type, plugin_registry=__PluginRegistry.megacomplex
    )
def test_is_registered_plugin():
    """Registered name in registry"""
    assert is_registered_plugin("sdt", mock_registry_data_io)
    assert not is_registered_plugin("not-registered", mock_registry_data_io)