Update random_charactor_generator.py

random_charactor_generator.py

@@ -4,7 +4,7 @@ from transformers import Tool
 
 class RandomCharatorGeneratorTool(Tool):
     name = "random_character"
-    description = "This tool generates a random character based on an input."
+    description = "This tool generates a random character. Returns json."
 
     inputs = ["text"]  # Adding an empty list for inputs
 
@@ -34,7 +34,7 @@ class RandomCharatorGeneratorTool(Tool):
 
         self.is_initialized = True
 
-    def __call__(self, input:str):
+    def __call__(self, input:str=""):
         if not self.is_initialized:
             self.setup()