/**
 * Generic representation of an xctrace exported table.
 *
 * xctrace's XML uses an id/ref deduplication scheme: a value's first occurrence
 * carries `id="N"`, later identical occurrences appear as `<col ref="N"/>`.
 * Our parser resolves all refs so each row is a flat record.
 */
export interface XctraceTable {
    schema: string;
    columns: string[];
    rows: Array<Record<string, XctraceValue>>;
}
/**
 * A column value. The `fmt` field is what Instruments displays in its UI;
 * `raw` is the underlying value (timestamp in ns, duration in ns, etc.).
 * `nested` is present when the value contains structured sub-elements
 * (e.g. a thread cell containing tid + process + pid).
 *
 * The `name` field carries the `@_name` attribute used by xctrace for
 * `<frame name="..." />` and `<binary name="..." />` elements in stack
 * backtraces. Without it, time-profile rows lose their symbol metadata.
 */
export interface XctraceValue {
    raw?: string;
    fmt?: string;
    name?: string;
    nested?: Record<string, XctraceValue>;
}
/**
 * Parse a chunk of xctrace XML output (from `xcrun xctrace export --xpath ...`)
 * into structured tables.
 */
export declare function parseXctraceXml(xml: string): XctraceTable[];
/** Helper: pull a numeric value from an XctraceValue (raw nanoseconds, ms, etc.). */
export declare function asNumber(v: XctraceValue | undefined): number | undefined;
/** Helper: pull a formatted string from an XctraceValue. */
export declare function asFormatted(v: XctraceValue | undefined): string | undefined;