getParentChunk(chunkFileName, staticOnly) {
		if (this.bundle[chunkFileName].isEntry) return;
		for (const fileName in this.bundle) {
			const chunk = this.bundle[fileName];
			if (chunk.type !== 'chunk') continue;
			if (chunk.imports.includes(chunkFileName)) return chunk;
			if (!staticOnly && chunk.dynamicImports.includes(chunkFileName)) return chunk;
		}
	}
@param {string} chunkFileName
@param {boolean} [staticOnly=false]