def header.check
import bend-kit-websocket@0.4.0.0/websocket.bend as Websocketimport Base
400def header.check(+masked: Bool, +b0: U32, +m: Bool, +key: U32, +hs: U32, +hi: U32, +len: U32) -> Header:
401 header.verdict(header.err(masked, b0, m, hi, len), U32.is_ne((b0 .&. 128 : U32), 0), (b0 .&. 15 : U32), m, key, hs, len)