import "github.com/jmckaskill/go-capnproto/capnp" seg := capnp.NewBuffer(nil).NewSegment()
import "github.com/jmckaskill/go-capnproto/capnp/segment" seg := segment.New() ptr := seg.Allocate(16)This code creates a new Cap'n Proto segment and allocates 16 bytes of memory within it. It returns a pointer to the start of the allocated memory. In conclusion, go-capnproto's Segment package provides a lot of useful functionalities to manipulate Cap'n Proto messages and manipulates segments within the message.