<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def annotate(self, text, lang = None, customParams = None):
 """ identify the list of entities and nonentities mentioned in the text @param text: input text to annotate @param lang: language of the provided document (can be an ISO2 or ISO3 code). If None is provided, the language will be automatically detected @param customParams: None or a dict with custom parameters to send to the annotation service @returns: dict """

        params = {"lang": lang, "text": text}
        if customParams:
            params.update(customParams)
        return self._er.jsonRequestAnalytics("/api/v1/annotate", params)