community[minor]: add mojeek search util (#20922)

**Description:** This pull request introduces a new feature to community
tools, enhancing its search capabilities by integrating the Mojeek
search engine
**Dependencies:** None

---------

Co-authored-by: Igor Brai <igor@mojeek.com>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
Co-authored-by: ccurme <chester.curme@gmail.com>

libs/community/langchain_community/tools/mojeek_search/tool.py

@@ -0,0 +1,45 @@
+from __future__ import annotations
+
+from typing import Any, Optional
+
+from langchain_core.callbacks import (
+    AsyncCallbackManagerForToolRun,
+    CallbackManagerForToolRun,
+)
+from langchain_core.tools import BaseTool
+
+from langchain_community.utilities.mojeek_search import MojeekSearchAPIWrapper
+
+
+class MojeekSearch(BaseTool):
+    name: str = "mojeek_search"
+    description: str = (
+        "A wrapper around Mojeek Search. "
+        "Useful for when you need to web search results. "
+        "Input should be a search query."
+    )
+    api_wrapper: MojeekSearchAPIWrapper
+
+    @classmethod
+    def config(
+        cls, api_key: str, search_kwargs: Optional[dict] = None, **kwargs: Any
+    ) -> MojeekSearch:
+        wrapper = MojeekSearchAPIWrapper(
+            api_key=api_key, search_kwargs=search_kwargs or {}
+        )
+        return cls(api_wrapper=wrapper, **kwargs)
+
+    def _run(
+        self,
+        query: str,
+        run_manager: Optional[CallbackManagerForToolRun] = None,
+    ) -> str:
+        return self.api_wrapper.run(query)
+
+    async def _arun(
+        self,
+        query: str,
+        run_manager: Optional[AsyncCallbackManagerForToolRun] = None,
+    ) -> str:
+        """Use the tool asynchronously."""
+        raise NotImplementedError("MojeekSearch does not support async")