fix(util.py): fix IndentationError while parsing from source code. (#944)

src/backend/langflow/interface/tools/util.py

@@ -1,12 +1,13 @@
 import ast
 import inspect
+import textwrap
 from typing import Dict, Union
 
 from langchain.agents.tools import Tool
 
 
 def get_func_tool_params(func, **kwargs) -> Union[Dict, None]:
-    tree = ast.parse(inspect.getsource(func))
+    tree = ast.parse(textwrap.dedent(inspect.getsource(func)))
 
     # Iterate over the statements in the abstract syntax tree
     for node in ast.walk(tree):
@@ -57,7 +58,7 @@ def get_func_tool_params(func, **kwargs) -> Union[Dict, None]:
 
 
 def get_class_tool_params(cls, **kwargs) -> Union[Dict, None]:
-    tree = ast.parse(inspect.getsource(cls))
+    tree = ast.parse(textwrap.dedent(inspect.getsource(cls)))
 
     tool_params = {}