The provided ComposedAdapterService exports the IAdapterService interface, and "imports many" IAdapter implementations.

        Initialize your composition container so that it contains both the exported adapters and the adapter service, and it 
        will be initialized automatically for use.
        
        ======= Example =======
        // Initialize container with your assemblies/types/catalogs
        CompositionContainer container = new CompositionContainer(catalog);
        
        // Retrieve initialized adapter service
        IAdapterService service = container.GetExportedValue<IAdapterService>();
        
        // Initialize the adapter facade with the service
        Adapters.SetService(service);
        
        // Use adapter extension method As as needed, i.e.            
        // say we need to use it as an MSBuild project, if possible
        IMSBuildProject msbuild = project.As<IMSBuildProject>();
        if (msbuild != null)
            // do MSBuild stuff with it.
            
        ======= Adapters =======
        [Export(typeof(IAdapter))]
        public class ProjectToMsBuildAdapter : IAdapter<IProject, IMSBuildProject>
        {
            // Implement actual conversion.
        }

        Simply by exporting the right contract, the adapter service will locate it.
        Note that to create adapter implementations, you need to install the Adapter.Sdk package.

<PackageReference Include="Adapter.Composition.Source" Version="1.0.1212.522" />

source https://www.myget.org/F/clarius/api/v3/index.json

nuget Adapter.Composition.Source  ~> 1.0.1212.522

Import-Module PowerShellGet
Register-PSRepository -Name "clarius" -SourceLocation "https://www.myget.org/F/clarius/api/v2"
Install-Module -Name "Adapter.Composition.Source" -RequiredVersion "1.0.1212.522" -Repository "clarius"