import { type SerializedBlockDefinition } from "./serializedBlockDefinition.js";
/**
 * Imports a serialized custom block definition. Supports either serialized CustomShaderBlock definitions or
 * CustomAggregateBlock definitions. Can throw an exception if the serialized data is invalid.
 *
 * CustomShaderBlock definitions can be supplied either as serialized SerializedBlockDefinition object
 * or a glsl shader with the required annotations (see readme.md for details).
 *
 * CustomAggregateBlock definitions must be supplied as serialized SerializedBlockDefinition object.
 *
 * @param serializedData - The serialized data
 * @returns The serialized block definition
 */
export declare function ImportCustomBlockDefinition(serializedData: string): SerializedBlockDefinition;
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