code: def draw(self, proj, mouse_x, mouse_y, ui_manager):
      self.painter = BatchPainter()
      self.painter.set_color([0, 0, 255])
      df = self.data.where(
          (self.data["timestamp"] > self.t)
          & (self.data["timestamp"] <= self.t + 30 * 60)
      )
      proj.fit(
          BoundingBox.from_points(lons=df["lon"], lats=df["lat"]),
          max_zoom=14,
      )
      x, y = proj.lonlat_to_screen(df["lon"], df["lat"])
      self.painter.linestrip(x, y, 10)
      self.t += 30
      if self.t > self.data["timestamp"].max():
          self.t = self.data["timestamp"].min()
  
      self.painter.batch_draw()
      ui_manager.info(epoch_to_str(self.t))
  
imports: from geoplotlib.layers import BaseLayer
  from geoplotlib.core import BatchPainter
  import geoplotlib
  from geoplotlib.utils import epoch_to_str, BoundingBox, read_csv
label_desc: Use image node_id 2 for calling the TrailsLayer obj's underlying member method code with example usage: obj.draw(proj, mouse_x, mouse_y, ui_manager) without return types