import org.opensearch.index.query.QueryBuilder;
import org.opensearch.search.SearchHit;

/**
 * Helper class for scroll-based search operations in OpenSearch.
 * Centralizes scroll logic to reduce code duplication across settings and indexer classes.
 *
 * <p>This class provides methods to perform scroll-based searches with different processing patterns:
 * <ul>

        this.clusterTimeout = timeout;
    }

    /**
     * Gets the scroll timeout.
     * @return The scroll timeout.
     */
    public String getScrollTimeout() {
        return scrollTimeout;
    }

    /**
     * Sets the scroll timeout.
     * @param timeout The scroll timeout.
     */
    public void setScrollTimeout(final String timeout) {

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

        POPULARWORD,
        /** Favorite API format. */
        FAVORITE,
        /** Favorites API format. */
        FAVORITES,
        /** Ping API format. */
        PING,
        /** Scroll API format. */
        SCROLL,
        /** Suggest API format. */
        SUGGEST,
        /** Other API format. */
        OTHER;
    }

    /**
     * Default constructor for BaseApiManager.
     */

     */
    public SuggestSettingsBuilder addInitialSettings(final String key, final Object value) {
        initialSettings.put(key, value);
        return this;
    }

    /**
     * Sets the scroll timeout.
     * @param timeout The scroll timeout.
     * @return This builder instance.
     */
    public SuggestSettingsBuilder scrollTimeout(final String timeout) {
        timeoutSettings.setScrollTimeout(timeout);
        return this;

    }

    /**
     * Scrolls through all documents in the specified index and applies the callback function to each hit.
     *
     * @param index the name of the index to scroll through
     * @param callback the function to apply to each search hit, returning true to continue or false to stop
     * @return the number of documents processed
     */

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

import io.restassured.path.json.JsonPath;
import io.restassured.response.Response;

/**
 * Integration tests for the Scroll Search API (/api/v1/documents/all)
 * This test requires crawled documents and api.search.scroll to be enabled
 */
@Tag("it")
@Disabled("Requires api.search.scroll to be enabled in fess_config.properties")
public class ScrollSearchApiTests extends CrawlTestBase {

  <!--
    Truly temporary suppressions suppression of snippets included in
    documentation that are so wide that they scroll.
  -->
  <suppress files="client[/\\]rest-high-level[/\\]src[/\\]test[/\\]java[/\\]org[/\\]elasticsearch[/\\]client[/\\]documentation[/\\]ClusterClientDocumentationIT.java" id="SnippetLength" />