NormativeKeyword

NormativeKeyword = "MUST" | "MUST NOT" | "REQUIRED" | "SHALL" | "SHALL NOT" | "SHOULD" | "SHOULD NOT" | "RECOMMENDED" | "MAY" | "OPTIONAL"

Defined in: packages/speculator/src/parse/utils/normative.ts:23

RFC 2119 / 8174 keywords including aliases.