import { Element } from 'libxmljs2';
export declare const ns: {
    e: string;
    xhtml: string;
};
export declare const textAnswerTypes: readonly ["text-answer", "scored-text-answer"];
export declare const choiceAnswerTypes: readonly ["choice-answer", "dropdown-answer", "dnd-answer"];
export declare const audioAnswerTypes: readonly ["audio-answer"];
export declare const choiceAnswerOptionTypes: readonly ["choice-answer-option", "dropdown-answer-option", "dnd-answer-option"];
export declare const answerTypes: ("text-answer" | "scored-text-answer" | "choice-answer" | "dropdown-answer" | "dnd-answer" | "audio-answer")[];
export declare const attachmentTypes: readonly ["image", "video", "file", "audio", "audio-test"];
export interface Exam {
    element: Element;
    sections: Section[];
    questions: Question[];
    topLevelQuestions: Question[];
    answers: Answer[];
}
export interface Section {
    element: Element;
    questions: Question[];
}
export interface Question {
    element: Element;
    childQuestions: Question[];
    answers: Answer[];
    gradingInstructions?: GradingInstruction[];
}
export interface Answer {
    element: Element;
    question: Element;
    gradingInstruction?: GradingInstruction;
}
export interface GradingInstruction {
    element: Element;
}
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