code: def draw(self, projection_matrix=None, camera_matrix=None, time=0):
          
          if self.mesh:
              self.mesh.draw(
                  projection_matrix=projection_matrix,
                  view_matrix=self.matrix_global_bytes,
                  camera_matrix=camera_matrix,
                  time=time
              )
  
          for child in self.children:
              child.draw(
                  projection_matrix=projection_matrix,
                  camera_matrix=camera_matrix,
                  time=time
              )
docs: Draw node and children
  
          :param projection_matrix: projection matrix (bytes)
          :param camera_matrix: camera_matrix (bytes)
          :param time: The current time