import { NameNode, TypeNode, NamedTypeNode, GraphQLObjectType, GraphQLNonNull, GraphQLList } from 'graphql';
import { FlowPluginConfig } from './index';
export declare function block(array: any): string;
export declare function wrapWithSingleQuotes(str: string | NameNode): string;
export declare function breakLine(str: string): string;
export declare function indent(str: string): string;
export declare class DeclarationBlock {
    _export: boolean;
    _name: any;
    _kind: any;
    _methodName: any;
    _content: any;
    _block: any;
    _nameGenerics: any;
    _config: any;
    constructor(config: FlowPluginConfig);
    export(exp?: boolean): DeclarationBlock;
    asKind(kind: any): DeclarationBlock;
    withMethodCall(methodName: string): DeclarationBlock;
    withBlock(block: string): DeclarationBlock;
    withContent(content: string): DeclarationBlock;
    withName(name: string | NameNode, generics?: string | null): DeclarationBlock;
    getFlowReadOnlyTypeBlock(): string;
    readonly string: string;
}
export declare function getBaseTypeNode(typeNode: TypeNode): NamedTypeNode;
export declare function wrapAstTypeWithModifiers(baseType: string, typeNode: TypeNode): string;
export declare function wrapTypeWithModifiers(baseType: string, type: GraphQLObjectType | GraphQLNonNull<GraphQLObjectType> | GraphQLList<GraphQLObjectType>): string;
export declare function toPascalCase(str: string): string;