import { OpenAPIV3, OpenAPIV3_1 } from '@useoptic/openapi-utilities';
type PropertyType = {
    required: boolean;
    schema: OpenAPIV3.SchemaObject | OpenAPIV3_1.SchemaObject;
};
type BreakingChangeResult = {
    enum: string | false;
    typeChange: string | false;
    requiredChange: string | false;
};
export declare function computeTypeTransition(before: PropertyType, after: PropertyType): {
    request: BreakingChangeResult;
    response: BreakingChangeResult;
};
export declare function computeEffectiveTypeChange(beforeType: string | string[] | undefined, afterType: string | string[] | undefined): {
    expanded: boolean;
    narrowed: boolean;
};
export declare function diffSets(beforeSet: Set<string>, afterSet: Set<string>): {
    beforeSetDiff: string[];
    afterSetDiff: string[];
};
export {};
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