export declare const MAX_INHERITED_ENVIRONMENT_VARIABLES = 32;
export declare const MAX_ENVIRONMENT_VARIABLE_NAME_LENGTH = 128;
/** Accept only portable, bounded environment variable names that can be safely passed to a verifier. */
export declare function isEnvironmentVariableName(value: unknown): value is string;
/** A declaration must be non-empty, bounded, unique, and made only of valid variable names. */
export declare function isEnvironmentVariableList(value: unknown): value is readonly string[] | undefined;