Update all documentation to import extraction strategies directly from crawl4ai.

tests/async/test_0.4.2_config_params.py

@@ -8,7 +8,7 @@ import asyncio
 from crawl4ai import AsyncWebCrawler, CacheMode
 from crawl4ai.async_configs import BrowserConfig, CrawlerRunConfig
 from crawl4ai.content_filter_strategy import PruningContentFilter
-from crawl4ai.extraction_strategy import JsonCssExtractionStrategy
+from crawl4ai import JsonCssExtractionStrategy
 from crawl4ai.chunking_strategy import RegexChunking
 
 

tests/async/test_chunking_and_extraction_strategies.py

@@ -10,7 +10,7 @@ sys.path.append(parent_dir)
 from crawl4ai import LLMConfig
 from crawl4ai.async_webcrawler import AsyncWebCrawler
 from crawl4ai.chunking_strategy import RegexChunking
-from crawl4ai.extraction_strategy import LLMExtractionStrategy
+from crawl4ai import LLMExtractionStrategy
 
 
 @pytest.mark.asyncio

tests/general/test_schema_builder.py

@@ -9,7 +9,7 @@ __location__ = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file
 import asyncio
 from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig, CacheMode
 from crawl4ai.markdown_generation_strategy import DefaultMarkdownGenerator
-from crawl4ai.extraction_strategy import JsonCssExtractionStrategy, JsonXPathExtractionStrategy
+from crawl4ai import JsonCssExtractionStrategy, JsonXPathExtractionStrategy
 from crawl4ai.utils import preprocess_html_for_schema, JsonXPathExtractionStrategy
 import json
 

tests/test_web_crawler.py

@@ -6,7 +6,7 @@ from crawl4ai.chunking_strategy import (
     FixedLengthWordChunking,
     SlidingWindowChunking,
 )
-from crawl4ai.extraction_strategy import (
+from crawl4ai import (
     CosineStrategy,
     LLMExtractionStrategy,
     TopicExtractionStrategy,