text: import voluptuous as vol
  
  import esphomeyaml.config_validation as cv
  from esphomeyaml import automation
  from esphomeyaml.components import cover
  from esphomeyaml.const import CONF_CLOSE_ACTION, CONF_LAMBDA, CONF_MAKE_ID, CONF_NAME, \
      CONF_OPEN_ACTION, CONF_STOP_ACTION, CONF_OPTIMISTIC
  from esphomeyaml.helpers import App, Application, NoArg, add, process_lambda, variable, optional, \
      setup_component
  
  MakeTemplateCover = Application.struct('MakeTemplateCover')
  TemplateCover = cover.cover_ns.class_('TemplateCover', cover.Cover)
  
  PLATFORM_SCHEMA = cv.nameable(cover.COVER_PLATFORM_SCHEMA.extend({
      cv.GenerateID(CONF_MAKE_ID): cv.declare_variable_id(MakeTemplateCover),
      cv.GenerateID(): cv.declare_variable_id(TemplateCover),
      vol.Optional(CONF_LAMBDA): cv.lambda_,
      vol.Optional(CONF_OPTIMISTIC): cv.boolean,
      vol.Optional(CONF_OPEN_ACTION): automation.validate_automation(single=True),
      vol.Optional(CONF_CLOSE_ACTION): automation.validate_automation(single=True),
      vol.Optional(CONF_STOP_ACTION): automation.validate_automation(single=True),
  }).extend(cv.COMPONENT_SCHEMA.schema), cv.has_at_least_one_key(CONF_LAMBDA, CONF_OPTIMISTIC))
  
  
  def to_code(config):
      rhs = App.make_template_cover(config[CONF_NAME])
      make = variable(config[CONF_MAKE_ID], rhs)
  
      cover.setup_cover(make.Ptemplate_, make.Pmqtt, config)
      setup_component(make.Ptemplate_, config)
  
      if CONF_LAMBDA in config:
          for template_ in process_lambda(config[CONF_LAMBDA], [],
                                          return_type=optional.template(cover.CoverState)):
              yield
          add(make.Ptemplate_.set_state_lambda(template_))
      if CONF_OPEN_ACTION in config:
          automation.build_automation(make.Ptemplate_.get_open_trigger(), NoArg,
                                      config[CONF_OPEN_ACTION])
      if CONF_CLOSE_ACTION in config:
          automation.build_automation(make.Ptemplate_.get_close_trigger(), NoArg,
                                      config[CONF_CLOSE_ACTION])
      if CONF_STOP_ACTION in config:
          automation.build_automation(make.Ptemplate_.get_stop_trigger(), NoArg,
                                      config[CONF_STOP_ACTION])
      if CONF_OPTIMISTIC in config:
          add(make.Ptemplate_.set_optimistic(config[CONF_OPTIMISTIC]))
  
  
  BUILD_FLAGS = '-DUSE_TEMPLATE_COVER'
  
  
  def to_hass_config(data, config):
      ret = cover.core_to_hass_config(data, config)
      if ret is None:
          return None
      if CONF_OPTIMISTIC in config:
          ret['optimistic'] = config[CONF_OPTIMISTIC]
      return ret
  