def has_f
import bend-collections-laws-math@1.0.0.0/src/containers/hash_table.bend as HashTableimport Base
488def has_f(a, -V: Kind(a), +n: U32, +mask: U32, +td: U32, +fresh: U32, +sz: U32, +sd: U32, +free: U32, vs: Array<Maybe<a, V>>, nx: Array<U32>, r: Found & U32) -> HashMap<a, V> & Bool:
489 (fd, w) = r
490 FD{tab, ks, key, at, +l} = fd
491 (HM{n, mask, td, fresh, sz, sd, free, tab, ks, vs, nx}, U32.is_ne(l, 0))