type syscall.Conn

3 uses

	syscall (current package)
		net.go#L31: type Conn interface {

	google.golang.org/grpc/internal/credentials
		syscallconn.go#L26: type sysConn = syscall.Conn
		syscallconn.go#L50: 	sysConn, ok := rawConn.(syscall.Conn)