import "github.com/iineva/bom/pkg/bom"
fileName := "Assets.car"
f, _ := os.Open(fileName)
defer f.Close()
b := bom.New(f)
err := b.Parse() // parse header first
// read block names
names := b.BlockNames()
// read block
r, err := b.ReadBlock(names[0])
// read tree block
err := b.ReadTree("FACETKEYS", func(k io.Reader, d io.Reader) error {
    // handle tree block item
})

import "github.com/iineva/bom/pkg/asset"
fileName := "Assets.car"
f, _ := os.Open(fileName)
defer f.Close()
b, _ := asset.NewWithReadSeeker(f)
// read image with name
img, err := b.Image("AppIcon")