s3 := append(s2, s0...)            // append a slice              s3 is []int{0, 0, 2, 3, 5, 7, 0, 0}
s4 := append(s3[3:6], s3[2:]...)   // append overlapping slice    s4 is []int{3, 5, 7, 2, 3, 5, 7, 0, 0}

var t []interface{}
t = append(t, 42, 3.1415, "foo")   //                             t is []interface{}{42, 3.1415, "foo"}

var b []byte

pkg syscall (darwin-arm64), method (*Iovec) SetLen(int)
pkg syscall (darwin-arm64), method (*Msghdr) SetControllen(int)
pkg syscall (darwin-arm64), type BpfHdr struct
pkg syscall (darwin-arm64), type BpfHdr struct, Caplen uint32
pkg syscall (darwin-arm64), type BpfHdr struct, Datalen uint32
pkg syscall (darwin-arm64), type BpfHdr struct, Hdrlen uint16
pkg syscall (darwin-arm64), type BpfHdr struct, Pad_cgo_0 [2]uint8