def v6.field
import bend-kit-netip@0.1.0.0/netip.bend as Netipimport Base
309def v6.field(n: U32, +i: U32, +start: U32, +length: U32) -> String:
310 +end = (start + length : U32)
311 v6.field.if(Bool.and(U32.is_ge(i, start), U32.is_lt(i, end)), n, i, start, end)