export declare const FieldBehavior: {
    readonly FIELD_BEHAVIOR_UNSPECIFIED: "FIELD_BEHAVIOR_UNSPECIFIED";
    readonly OPTIONAL: "OPTIONAL";
    readonly REQUIRED: "REQUIRED";
    readonly OUTPUT_ONLY: "OUTPUT_ONLY";
    readonly INPUT_ONLY: "INPUT_ONLY";
    readonly IMMUTABLE: "IMMUTABLE";
    readonly UNORDERED_LIST: "UNORDERED_LIST";
    readonly NON_EMPTY_DEFAULT: "NON_EMPTY_DEFAULT";
};
export type FieldBehavior = 'FIELD_BEHAVIOR_UNSPECIFIED' | 0 | 'OPTIONAL' | 1 | 'REQUIRED' | 2 | 'OUTPUT_ONLY' | 3 | 'INPUT_ONLY' | 4 | 'IMMUTABLE' | 5 | 'UNORDERED_LIST' | 6 | 'NON_EMPTY_DEFAULT' | 7;
export type FieldBehavior__Output = typeof FieldBehavior[keyof typeof FieldBehavior];