docs: func (c *PinpointEmail) ListEmailIdentitiesRequest(input *ListEmailIdentitiesInput) (req *request.Request, output *ListEmailIdentitiesOutput) {
  	op := &request.Operation{
  		Name:       opListEmailIdentities,
  		HTTPMethod: "GET",
  		HTTPPath:   "/v1/email/identities",
  		Paginator: &request.Paginator{
  			InputTokens:     []string{"NextToken"},
  			OutputTokens:    []string{"NextToken"},
  			LimitToken:      "PageSize",
  			TruncationToken: "",
  		},
  	}
  
  	if input == nil {
  		input = &ListEmailIdentitiesInput{}
  	}
  
  	output = &ListEmailIdentitiesOutput{}
  	req = c.newRequest(op, input, output)
  	return
  }