/**
 * These helpers help us to construct AST nodes required for Apollo Federation's printSchema to work.
 */
import type { DirectiveNode, NameNode, ObjectTypeDefinitionNode, StringValueNode } from "graphql";
/**
 * Construct AST `name` node required for Apollo Federation's printSchema.
 * @param value The value.
 * @returns The AST name node.
 */
export declare function Name(value: string): NameNode;
/**
 * Construct AST `StringValue` node required for Apollo Federation's printSchema.
 * @param value The value.
 * @param block A value indicating whether or not to block.
 * @returns The AST `stringValue` node.
 */
export declare function StringValue(value: string, block?: boolean): StringValueNode;
/**
 * Construct AST `ObjectTypeDefinition` node required for Apollo Federation's printSchema.
 * @param spec The field specification.
 * @returns The AST `ObjectTypeDefinition` node.
 */
export declare function ObjectTypeDefinition(spec: {
    name: string;
    description?: string | null;
}): ObjectTypeDefinitionNode;
/**
 * Construct AST `Directive` node required for Apollo Federation's printSchema.
 * @param name The GraphQL directive.
 * @param args The directive args.
 * @returns The AST `Directive` node.
 */
export declare function Directive(name: string, args?: {
    [argName: string]: unknown;
}): DirectiveNode;