Externs Include core externs Raw Parent Chunk JS Raw Child Chunk JS JS Conformance Config (documentation) Lint and Error Checking ENABLE_ALL_DIAGNOSTIC_GROUPS CHECK_TYPES STRICT_CHECK_TYPES CHECKS_ONLY REWRITE_MODULES_BEFORE_TYPECHECKING DISABLE_MODULE_REWRITING CHECK_CONSTANTS CHECK_DEPRECATED CHECK_ES5_STRICT CHECK_GLOBAL_THIS CHECK_LINT CHECK_MISSING_RETURN CHECK_UNREACHABLE_CODE CHECK_PROVIDES