export interface LSDiagnostic {
    range: {
        start: {
            line: number;
            character: number;
        };
        end: {
            line: number;
            character: number;
        };
    };
    severity: 1 | 2 | 3 | 4;
    message: string;
    source: string;
}
export interface CompletionItem {
    label: string;
    kind: number;
    detail?: string;
    insertText?: string;
}
export interface HoverResult {
    contents: string;
    range?: {
        start: {
            line: number;
            character: number;
        };
        end: {
            line: number;
            character: number;
        };
    };
}
export declare class DQLLanguageService {
    format(source: string): string;
    validate(source: string, uri: string): LSDiagnostic[];
    getCompletions(source: string, line: number, character: number): CompletionItem[];
    getHover(source: string, line: number, character: number): HoverResult | null;
}
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