export declare enum BabeliaTargetLanguage {
    English = "English",
    Spanish = "Spanish",
    French = "French",
    German = "German",
    Italian = "Italian"
}
export declare enum BabeliaNativeLanguage {
    Portuguese = "Portuguese",
    English = "English",
    Spanish = "Spanish",
    French = "French",
    German = "German",
    Italian = "Italian"
}
export declare enum BabeliaLevel {
    A1 = "A1",
    A2 = "A2",
    B1 = "B1",
    B2 = "B2",
    C1 = "C1",
    C2 = "C2"
}
export declare enum BabeliaActivityType {
    Reading = "Reading",
    Listening = "Listening",
    Writing = "Writing",
    Speaking = "Speaking"
}
export declare enum BabeliaQuestionType {
    MultipleChoice = "MultipleChoice",
    FillBlank = "FillBlank",
    TrueFalse = "TrueFalse",
    OrderSentence = "OrderSentence",
    OpenText = "OpenText"
}
export declare enum BabeliaTopicType {
    Grammar = "Grammar",
    Vocabulary = "Vocabulary",
    Culture = "Culture"
}
export declare enum BabeliaBadgeType {
    FirstLesson = "FirstLesson",
    Streak7Days = "Streak7Days",
    Streak30Days = "Streak30Days",
    Streak100Days = "Streak100Days",
    LevelA1Complete = "LevelA1Complete",
    LevelA2Complete = "LevelA2Complete",
    LevelB1Complete = "LevelB1Complete",
    LevelB2Complete = "LevelB2Complete",
    LevelC1Complete = "LevelC1Complete",
    LevelC2Complete = "LevelC2Complete",
    FirstSpeaking = "FirstSpeaking",
    Words10Marked = "Words10Marked",
    Words50Marked = "Words50Marked",
    Words100Marked = "Words100Marked"
}
export declare enum BabeliaMissionType {
    CompleteQuestions = "CompleteQuestions",
    PracticeSpeaking = "PracticeSpeaking",
    CompleteTopic = "CompleteTopic",
    MarkWord = "MarkWord"
}
export declare enum BabeliaFriendshipStatus {
    Pending = "Pending",
    Accepted = "Accepted",
    Rejected = "Rejected"
}
export type BabeliaSubscriptionStatus = 'active' | 'cancelled' | 'expired' | 'grace_period';
export interface BabeliaGrammarError {
    original: string;
    correction: string;
    explanation: string;
}
export interface BabeliaWritingFeedback {
    overallScore: number;
    grammarErrors: BabeliaGrammarError[];
    vocabularySuggestions: string[];
    taskCompletion: boolean;
    generalComment: string;
    improvedVersion: string;
}