Update __init__.py

Author: bact

pythainlp/summarize/__init__.py

@@ -10,8 +10,9 @@
     "summarize",
 ]
 
-from pythainlp.summarize.core import extract_keywords, summarize
-
 DEFAULT_SUMMARIZE_ENGINE = "frequency"
 CPE_KMUTT_THAI_SENTENCE_SUM = "mt5-cpe-kmutt-thai-sentence-sum"
 DEFAULT_KEYWORD_EXTRACTION_ENGINE = "keybert"
+
+# these imports are placed here to avoid circular imports
+from pythainlp.summarize.core import extract_keywords, summarize