type Fragment struct {
	chain []*types.BlockData
}

// Filter returns a new fragments with blocks that satisfies the predicate p
func (f *Fragment) Filter(p func(*types.BlockData) bool) *Fragment

// Find return the first occurrence of a types.BlockData that
// satisfies the predicate p
func (f *Fragment) Find(p func(*types.BlockData) bool) *types.BlockData

// Last returns the first block in the fragment or nil otherwise
func (f *Fragment) First() *types.BlockData

// Last returns the last block in the fragment or nil otherwise
func (f *Fragment) Last() *types.BlockData

// Len returns the amount of blocks in the fragment
func (f *Fragment) Len() int

// Iter returns an iterator of the blocks in the fragment
// it enables the caller to use range keyword in the Fragment instance
func (f *Fragment) Iter() iter.Seq[*types.BlockData]

// Concat returns a new fragment containing the concatenation
// between this fragment and the given as argument fragment
func (f *Fragment) Concat(snd *Fragment) *Fragment