text: import json
  import re
  
  from streamlink.plugin import Plugin, pluginmatcher
  from streamlink.plugin.api import validate
  from streamlink.stream import HLSStream
  from streamlink.utils.url import update_scheme
  
  
  @pluginmatcher(re.compile(
      r"https?://player\.invintus\.com/\?clientID=(\d+)&eventID=(\d+)"
  ))
  class InvintusMedia(Plugin):
      WSC_API_KEY = "7WhiEBzijpritypp8bqcU7pfU9uicDR"  # hard coded in the middle of https://player.invintus.com/app.js
      API_URL = "https://api.v3.invintusmedia.com/v2/Event/getDetailed"
  
      api_response_schema = validate.Schema({"data": {"streamingURIs": {"main": validate.url()}}})
  
      def _get_streams(self):
          postdata = {
              "clientID": self.match.group(1),
              "showEncoder": True,
              "showMediaAssets": True,
              "showStreams": True,
              "includePrivate": False,
              "advancedDetails": True,
              "VAST": True,
              "eventID": self.match.group(2)
          }
          headers = {
              "Content-Type": "application/json",
              "wsc-api-key": self.WSC_API_KEY,
              "Authorization": "embedder"
          }
          res = self.session.http.post(self.API_URL, data=json.dumps(postdata), headers=headers)
          api_response = self.session.http.json(res, schema=self.api_response_schema)
          if api_response is None:
              return
  
          hls_url = api_response["data"]["streamingURIs"]["main"]
          return HLSStream.parse_variant_playlist(self.session, update_scheme(self.url, hls_url))
  
  
  __plugin__ = InvintusMedia
  