/** Base class for every error the chart-rule evaluator can throw. */
export declare class ChartRuleError extends Error {
}
/**
 * A node whose `kind` is not in the vocabulary. The caller catches this and
 * shows the setting as "configured in code", read-only.
 */
export declare class UnknownNodeError extends ChartRuleError {
    readonly kind?: string | undefined;
    constructor(kind?: string | undefined);
}
/** A node evaluated to the wrong type of value (e.g. comparing non-numbers). */
export declare class RuleTypeError extends ChartRuleError {
    constructor(message: string);
}
/**
 * A structurally invalid node in a deserialized value: not an object, no string
 * `kind`, or a `literal` without a scalar `value`. Distinct from
 * `UnknownNodeError` (a well-formed node whose `kind` is simply not in the
 * vocabulary — the intentional escape hatch). Like the others it is a
 * `ChartRuleError`, so a caller reading an untrusted rule catches it instead of
 * a native `TypeError` (or, worse, an `undefined` slipping through silently).
 */
export declare class MalformedRuleError extends ChartRuleError {
    constructor(message: string);
}
/** @deprecated v1 is non-recursive. Retained for source compatibility. */
export declare class RuleDepthError extends ChartRuleError {
    constructor(maxDepth: number);
}
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