/**
 * Error thrown when a read model variant does not declare at least one entersOn event.
 */
export declare class VariantMustDeclareEntersOnEvent extends Error {
    /**
     * Creates a new {@link VariantMustDeclareEntersOnEvent}.
     * @param typeName - The name of the variant type missing an entersOn declaration.
     */
    constructor(typeName: string);
}
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