/**
 * Machine-readable authoring surface for chart visualization primitives.
 *
 * The SDK build serializes this registry to `capabilities.json`. Keep the
 * registry aligned with the public builders and the serialized-node schema;
 * contract tests enforce both relationships.
 */
export declare const visualizationGrammarCapabilities: {
    readonly contractVersion: 1;
    readonly moduleSpecifier: "npm:@rippling/rippling-sdk/lib/charts";
    readonly builders: {
        readonly value: {
            readonly kind: "input";
            readonly returns: "number";
        };
        readonly literal: {
            readonly kind: "literal";
            readonly parameters: readonly ["scalar"];
            readonly returns: "value";
        };
        readonly equals: {
            readonly kind: "comparison";
            readonly parameters: readonly ["value", "value"];
            readonly returns: "condition";
        };
        readonly isNot: {
            readonly kind: "comparison";
            readonly parameters: readonly ["value", "value"];
            readonly returns: "condition";
        };
        readonly lessThan: {
            readonly kind: "comparison";
            readonly parameters: readonly ["value", "value"];
            readonly returns: "condition";
        };
        readonly greaterThan: {
            readonly kind: "comparison";
            readonly parameters: readonly ["value", "value"];
            readonly returns: "condition";
        };
        readonly lessOrEqual: {
            readonly kind: "comparison";
            readonly parameters: readonly ["value", "value"];
            readonly returns: "condition";
        };
        readonly greaterOrEqual: {
            readonly kind: "comparison";
            readonly parameters: readonly ["value", "value"];
            readonly returns: "condition";
        };
        readonly when: {
            readonly kind: "conditional";
            readonly parameters: readonly ["condition", "color", "color?"];
            readonly returns: "conditional-color";
        };
        readonly color: {
            readonly kind: "channel";
            readonly parameters: readonly ["conditional-color"];
            readonly returns: "color-rule";
            readonly placeholderChannel: "color";
        };
    };
    readonly supportedChannels: readonly ["color"];
    readonly supportedNodeKinds: readonly ["literal", "value", "equals", "isNot", "lessThan", "greaterThan", "lessOrEqual", "greaterOrEqual", "ifElse"];
};
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