You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: struct_receiver_with_multiple_fields.go
    path of file: ./repos/gotests/testdata/goldens
    
    the code of the file until where you have to start completion: package testdata

import "testing"

func TestPerson_SayHello(t *testing.T) {
	type fields struct {
		FirstName string
		LastName  string
		Age       int
		Gender    string
		Siblings  []*Person
	}
	type args struct {
		r *Person
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		want   strin
    
func TestPerson_SayHello(t *testing.T) {
	type fields struct {
		FirstName string
		LastName  string
		Age       int
		Gender    string
		Siblings  []*Person
	}
	type args struct {
		r *Person
	}
	tests := []struct {
		name   string
		fields fields
		args   args
		want   string
	}{
		// TODO: Add test cases.
	}
	for _, tt := range tests {
		p := &Person{
			FirstName: tt.fields.FirstName,
			LastName:  tt.fields.LastName,
			Age:       tt.fields.Age,
			Gender:    tt.fields.Gender,
			Siblings:  tt.fields.Siblings,
		}
		if got := p.SayHello(tt.args.r); got != tt.want {
			t.Errorf("%q. Person.SayHello() = %v, want %v", tt.name, got, tt.want)
		}
	}
}