pub inline fn containsConstant(environ: Environ, comptime key: []const u8) bool
pub inline fn containsConstant(environ: Environ, comptime key: []const u8) bool { if (native_os == .windows) { const key_w = comptime unicode.wtf8ToWtf16LeStringLiteral(key); return getWindows(environ, key_w) != null; } else { return getPosix(environ, key) != null; } }