import type { FieldNode, FragmentDefinitionNode, GraphQLObjectType, GraphQLSchema, SelectionSetNode } from 'graphql';
import { Path } from '@graphql-tools/utils';
export interface DeferUsage {
    label: string | undefined;
    parentDeferUsage: DeferUsage | undefined;
    depth: number;
}
export interface FieldDetails {
    node: FieldNode;
    deferUsage: DeferUsage | undefined;
}
export type FieldGroup = ReadonlyArray<FieldDetails>;
export type GroupedFieldSet = ReadonlyMap<string, FieldGroup> & {
    encounteredDefer?: boolean;
};
/**
 * Given a selectionSet, collects all of the fields and returns them.
 *
 * CollectFields requires the "runtime type" of an object. For a field that
 * returns an Interface or Union type, the "runtime type" will be the actual
 * object type returned by that field.
 *
 * @internal
 */
export declare function collectFields<TVariables = any>(schema: GraphQLSchema, fragments: Record<string, FragmentDefinitionNode>, variableValues: TVariables, runtimeType: GraphQLObjectType, selectionSet: SelectionSetNode, errorOnSubscriptionWithIncrementalDelivery: boolean): GroupedFieldSet;
/**
 * Given an array of field nodes, collects all of the subfields of the passed
 * in fields, and returns them at the end.
 *
 * CollectSubFields requires the "return type" of an object. For a field that
 * returns an Interface or Union type, the "return type" will be the actual
 * object type returned by that field.
 *
 * @internal
 */
export declare function collectSubfields(schema: GraphQLSchema, fragments: Record<string, FragmentDefinitionNode>, variableValues: {
    [variable: string]: unknown;
}, errorOnSubscriptionWithIncrementalDelivery: boolean, returnType: GraphQLObjectType, fieldGroup: FieldGroup, path: Path): GroupedFieldSet;