/** Exact integer rational, gcd-normalized. Authored durations compile to this. */
export interface Rational {
    num: number;
    den: number;
}
export interface TimeRange {
    start: Rational;
    end: Rational;
}
/** A video profile: frame rate as an exact rational (e.g. 60/1, 30000/1001). */
export interface VideoProfile {
    frameRate: Rational;
    width: number;
    height: number;
}
/** Half-open character range into an authored source file. */
export interface SourceRange {
    file: string;
    start: number;
    end: number;
}
export type Severity = "error" | "warning";
export interface Diagnostic {
    code: string;
    message: string;
    severity: Severity;
    range?: SourceRange;
}
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