whole_func_string: function newsletterSettingsSubmit( state = false, { type } ) {
  	switch ( type ) {
  		case WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT:
  		case WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT_SUCCESS:
  		case WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT_FAILURE:
  			return WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT === type;
  	}
  
  	return state;
  }
func_code_string: function newsletterSettingsSubmit( state = false, { type } ) {
  	switch ( type ) {
  		case WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT:
  		case WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT_SUCCESS:
  		case WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT_FAILURE:
  			return WOOCOMMERCE_MAILCHIMP_NEWSLETTER_SETTINGS_SUBMIT === type;
  	}
  
  	return state;
  }
func_documentation_string: Updates state with newsletter submit status
  
  @param  {Object} state  Current state
  @param  {Object} action Action
  @return {Object}        Updated state