import { type TypeNode } from 'graphql';
import { type FieldData } from '../../schema-building/types/types';
export declare enum DivergentType {
    NONE = 0,
    CURRENT = 1,
    OTHER = 2
}
export type FederateTypeSuccess = {
    success: true;
    typeNode: TypeNode;
};
export type FederateTypeFailure = {
    success: false;
};
export type FederateTypeResult = FederateTypeSuccess | FederateTypeFailure;
export type FederateTypeParams = {
    current: TypeNode;
    other: TypeNode;
    coords: string;
    mostRestrictive: boolean;
};
export type GetMergedTypeFailure = {
    actualType: string;
    expectedType: string;
    success: false;
};
export type GetMergedTypeSuccess = {
    success: true;
    typeNode: TypeNode;
};
export type GetMergedTypeResult = GetMergedTypeFailure | GetMergedTypeSuccess;
export declare function getLeastRestrictiveMergedTypeNode(current: TypeNode, other: TypeNode, hostPath: string, errors: Error[]): GetMergedTypeResult;
export declare function getMostRestrictiveMergedTypeNode(current: TypeNode, other: TypeNode, hostPath: string, errors: Error[]): GetMergedTypeResult;
export declare function renameNamedTypeName(fieldData: FieldData, newNamedTypeName: string, errors: Error[]): void;