parts := matrix.split("@user:server.com")
  assert parts[0] == '@'
  assert parts[1] == 'user'
  assert parts[2] == 'server.com'

	parts := split('@user:server.com')
	assert parts[0] == '@'
	assert parts[1] == 'user'
	assert parts[2] == 'server.com'

  mut parts := []string{}
  parts << id.substr(0,1)
  left := id.substr(1,id.len)
  parts << left.before(':')
  parts << left.after(':')
  return parts

	mut parts := []string{}
	parts << id.substr(0, 1)
	left := id.substr(1, id.len)
	parts << left.before(':')
	parts << left.after(':')
	return parts

		// self.matrix.leave(room.id)

		self.matrix.leave(room.id)