code: func NewSimpleMockBlock() *common.Block {
  	return &common.Block{
  		Data: &common.BlockData{
  			Data: [][]byte{[]byte("test")},
  		},
  		Header: &common.BlockHeader{
  			DataHash:     []byte(""),
  			PreviousHash: []byte(""),
  			Number:       1,
  		},
  		Metadata: &common.BlockMetadata{
  			Metadata: [][]byte{[]byte("test")},
  		},
  	}
  }
docs: // NewSimpleMockBlock returns a simple mock block