Added search mode and min degree filtering for NetworkX

- Implemented exact and inclusive search modes
- Added min degree filtering for nodes
- Updated API to parse label for search options

lightrag/lightrag.py

@@ -504,10 +504,24 @@ class LightRAG:
         return text
 
     async def get_knowledge_graph(
-        self, node_label: str, max_depth: int
+        self, node_label: str, max_depth: int, search_mode: str = "exact", min_degree: int = 0
     ) -> KnowledgeGraph:
+        """Get knowledge graph for a given label
+
+        Args:
+            node_label (str): Label to get knowledge graph for
+            max_depth (int): Maximum depth of graph
+            search_mode (str, optional): Search mode, either "exact" or "inclusive". Defaults to "exact".
+            min_degree (int, optional): Minimum degree of nodes to include. Defaults to 0.
+
+        Returns:
+            KnowledgeGraph: Knowledge graph containing nodes and edges
+        """
         return await self.chunk_entity_relation_graph.get_knowledge_graph(
-            node_label=node_label, max_depth=max_depth
+            node_label=node_label,
+            max_depth=max_depth,
+            search_mode=search_mode,
+            min_degree=min_degree
         )
 
     def _get_storage_class(self, storage_name: str) -> Callable[..., Any]: