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    "info": {
        "author": "Noel Gaur",
        "author_email": "noel.gaur@analyticservice.net",
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        "classifiers": [
            "License :: OSI Approved :: MIT License",
            "Programming Language :: Python :: 3",
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        "description": "## rasa extension plugin\n\nExtends rasa core through component plugin to include:\n\n**max_event_history** :  limits the tracker to maximum of latest 'N ' events\n\n**ExtendedDialogueStateTracker**: optimize payload to action server to exclude tracker events.\n\n\n\n## Installation\n\n* Install the plugin (requires python3)\n\n  Online from pypi:\n\n  ```shell\n  pip install rasa-ext-plugin\n  ```\n\n  Offline:\n\n  ```shell\n  git clone https://github.com/AppliedSoul/rasa_ext_plugin.git\n  pip install -e rasa_ext_plugin\n  ```\n\n  \n\n* In RASA **endpoints.yaml** , setup the plugin tracker store\n\n  ```yaml\n  ###########################################################\n  # limiter tracker for existing store types : \n  # rasa_ext_plugin.core.tracker_store.InMemoryLimiterTrackerStore\n  # rasa_ext_plugin.core.tracker_store.RedisLimiterTrackerStore\n  # rasa_ext_plugin.core.tracker_store.MongoLimiterTrackerStore\n  # rasa_ext_plugin.core.tracker_store.SQLLimiterTrackerStore\n  #\n  # All limiter tracker store optionally accepts: \n  # max_event_history - limit maximum events tracked by tracker\n  ############################################################\n  \n  #tracker_store:\n  #  type: rasa_ext_plugin.core.tracker_store.InMemoryLimiterTrackerStore\n  #  url: localhost\n  #  max_event_history: 40\n    \n  tracker_store:\n      type: rasa_ext_plugin.core.tracker_store.RedisLimiterTrackerStore\n      url: localhost\n      port: 6379\n      db: 0\n  #    password:\n  #    record_exp:\n      max_event_history: 40\n      \n  ```\n\n* Startup the rasa server.\n\n\n\n## Customizing tracker payload sent to remote action server\n\nRefer to  [tracker_store]  _ExtendedDialogueStateTracker_  , modify the return state from  *current\\_state* method.\n\n```python\nclass ExtendedDialogueStateTracker(DialogueStateTracker):    \n    # override \n    # Actions uses this method to collect tracker's metadata\n    # before sending payload as json.\n    def current_state(\n        self, event_verbosity: EventVerbosity = EventVerbosity.NONE\n    ) -> Dict[Text, Any]:\n        # conversation state format\n        #  {\n        #    \"sender_id\": self.sender_id,\n        #    \"slots\": self.current_slot_values(),\n        #    \"latest_message\": self.latest_message.parse_data,\n        #    \"latest_event_time\": latest_event_time,\n        #    \"followup_action\": self.followup_action,\n        #    \"paused\": self.is_paused(),\n        #    \"events\": evts,\n        #    \"latest_input_channel\": self.get_latest_input_channel(),\n        #    \"active_form\": self.active_form,\n        #    \"latest_action_name\": self.latest_action_name,\n        # }\n        state = super(ExtendedDialogueStateTracker,self).current_state(event_verbosity)\n        \n        #\n        # request payload to action server contains tracker information\n        # from this state \n\n        # removing events from state information\n        # action server currently ignores event history\n        # reduces size of request payload to action server\n        # \n        # additional unwanted keys can be poped to reduce size\n        #\n        state.pop(\"events\", None)\n        \n        return state\n```",
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