SampleConfiguration.xml

<?xml version="1.0" encoding="utf-8"?>
<LightCoreConfiguration xmlns="clr-namespace:LightCore.Configuration;assembly=LightCore.Configuration">
    <LightCoreConfiguration.TypeAliases>
        <TypeAlias Alias="HttpRequest" Type="LightCore.Integration.Web.Lifecycle.HttpRequestLifecycle, LightCore.Integration.Web" />
    </LightCoreConfiguration.TypeAliases>
    <LightCoreConfiguration.Registrations>
        <Registration ContractType="System.ComponentModel.IDisposable" ImplementationType="System.IO.Stream, mscorlib" />
        <Registration ContractType="LightCore.TestTypes.IRepository{2}, LightCore.TestTypes" ImplementationType="LightCore.TestTypes.Repository{2}, LightCore.TestTypes" />
        <Registration ContractType="LightCore.TestTypes.IFoo" ImplementationType="LightCore.TestTypes.Foo">
            <Registration.Arguments>
                <Argument Value="Alexander" />
                <Argument Value="44" Type="int" Name="AgeProperty"/>
                <Argument Value="true" Type="bool" />
            </Registration.Arguments>
        </Registration>
    </LightCoreConfiguration.Registrations>
    <LightCoreConfiguration.RegistrationGroups>
        <RegistrationGroup Name="Real">
            <RegistrationGroup.Registrations>
                <Registration ContractType="System.ComponentModel.IDisposable" ImplementationType="System.IO.Stream, mscorlib"/>
            </RegistrationGroup.Registrations>
        </RegistrationGroup>
        <RegistrationGroup Name="Fake">
            <RegistrationGroup.Registrations>
                <Registration ContractType="System.ComponentModel.IDisposable" ImplementationType="MyDisposableType, MyProject"/>
            </RegistrationGroup.Registrations>
        </RegistrationGroup>
    </LightCoreConfiguration.RegistrationGroups>
</LightCoreConfiguration>

<!--
Embedded in app.config / web.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <configSections>
        <section name="LightCoreConfiguration" type="LightCore.Configuration.XamlConfigSectionHandler, LightCore.Configuration" />
    </configSections>
    <LightCoreConfiguration xmlns="clr-namespace:LightCore.Configuration;assembly=LightCore.Configuration">
        <LightCoreConfiguration.TypeAliases>
            <TypeAlias Alias="HttpRequest" Type="LightCore.Integration.Web.HttpRequestLifecycle, LightCore.Integration.Web" />
        </LightCoreConfiguration.TypeAliases>
        <LightCoreConfiguration.Registrations>
            <Registration ContractType="System.ComponentModel.IDisposable" ImplementationType="System.IO.Stream, mscorlib"/>
            <Registration Name="MyCustomKey" ContractType="System.ComponentModel.IDisposable" ImplementationType="System.IO.Stream, mscorlib"/>
        </LightCoreConfiguration.Registrations>
        <LightCoreConfiguration.RegistrationGroups>
            <RegistrationGroup Name="Real">
                <RegistrationGroup.Registrations>
                    <Registration ContractType="System.ComponentModel.IDisposable" ImplementationType="System.IO.Stream, mscorlib"/>
                </RegistrationGroup.Registrations>
            </RegistrationGroup>
            <RegistrationGroup Name="Fake">
                <RegistrationGroup.Registrations>
                    <Registration ContractType="System.ComponentModel.IDisposable" ImplementationType="MyDisposableType, MyProject"/>
                </RegistrationGroup.Registrations>
            </RegistrationGroup>
        </LightCoreConfiguration.RegistrationGroups>
    </LightCoreConfiguration>
    </configuration>
-->