Change list[str] -> str for vectordbs (#1388)

embedchain/vectordb/chroma.py

@@ -183,7 +183,7 @@ class ChromaDB(BaseVectorDB):
 
     def query(
         self,
-        input_query: list[str],
+        input_query: str,
         n_results: int,
         where: Optional[dict[str, any]] = None,
         raw_filter: Optional[dict[str, any]] = None,
@@ -193,8 +193,8 @@ class ChromaDB(BaseVectorDB):
         """
         Query contents from vector database based on vector similarity
 
-        :param input_query: list of query string
-        :type input_query: list[str]
+        :param input_query: query string
+        :type input_query: str
         :param n_results: no of similar documents to fetch from database
         :type n_results: int
         :param where: to filter data