@Nonnull
    static SettingsBuilderRequest build(
            @Nonnull ProtoSession session,
            @Nonnull Source installationSettingsSource,
            @Nonnull Source userSettingsSource) {
        return build(session, installationSettingsSource, null, userSettingsSource);
    }

    @Nonnull
    static SettingsBuilderRequest build(

     * @return the result of the settings building, never {@code null}
     * @throws SettingsBuilderException if the effective settings could not be built
     */
    @Nonnull
    SettingsBuilderResult build(@Nonnull SettingsBuilderRequest request);

    /**
     * Builds the effective settings of the specified settings sources.
     *
     * @return the result of the settings building, never {@code null}

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.settings.Settings;

/**
 *
 * @since 4.0.0
 */
@Experimental
public interface SettingsBuilderResult extends Result<SettingsBuilderRequest> {

    /**
     * Gets the assembled settings.
     *
     * @return the assembled settings, never {@code null}
     */
    @Nonnull
    Settings getEffectiveSettings();

    /**

    void init(Context context) throws Exception;

    /**
     * Notifies the spy of some build event/operation.
     *
     * @param event The event, never {@code null}.
     * @see org.apache.maven.api.services.SettingsBuilderRequest
     * @see org.apache.maven.api.services.SettingsBuilderResult
     * @see org.apache.maven.execution.MavenExecutionRequest
     * @see org.apache.maven.execution.MavenExecutionResult

        context.userSettingsPath = userSettingsFile;

        UnaryOperator<String> interpolationSource = context.protoSession.getEffectiveProperties()::get;
        SettingsBuilderRequest settingsRequest = SettingsBuilderRequest.builder()
                .session(context.protoSession)
                .installationSettingsSource(
                        installationSettingsFile != null && Files.exists(installationSettingsFile)