set: true,
		And: And{
			Tags: []Tag{},
		},
		andSet: true,
	}

	oneTag := Filter{
		set: true,
		And: And{
			Tags: []Tag{{Key: "FOO", Value: "1"}},
		},
		andSet: true,
	}

	twoTags := Filter{
		set: true,
		And: And{
			Tags: []Tag{{Key: "FOO", Value: "1"}, {Key: "BAR", Value: "2"}},
		},
		andSet: true,
	}

	tests := []struct {
		filter   Filter

	set     bool

	Prefix Prefix

	ObjectSizeGreaterThan int64 `xml:"ObjectSizeGreaterThan,omitempty"`
	ObjectSizeLessThan    int64 `xml:"ObjectSizeLessThan,omitempty"`

	And    And
	andSet bool

	Tag    Tag
	tagSet bool

	// Caching tags, only once
	cachedTags map[string]string
}

// MarshalXML - produces the xml representation of the Filter struct

Raghunathan, Bhavani Subramanian, Bin Fan, blairhan, BléNesi Attila, Bodin-E,
Brandon Carter, Bryan Cutler, candy.dc, Cao Zongyan, Casper Da Costa-Luis, Chao
Liu, Chen Guoyin, chenchc, chengchingwen, chie8842, Christian Hansen, Christoph
Boeddeker, Christopher Yeh, Clayne Robison, Coady, Patrick, crafet, csukuangfj,
ctiijima, Dan Jarvis, Dan Lazewatsky, Daniel Ingram, Daniel Rasmussen, Daniel