import typing

class PatcherBot:
    def __init__(self):
        self.patches_applied = 0
        
    def generate_hotfix(self, cve_data: typing.Dict[str, typing.Any], source_code: str) -> str:
        # Returns mocked patched code
        if "cve_target_string" in source_code:
            return source_code.replace("cve_target_string", "patched_safe_string")
        return source_code
