import { ProjectPluginStructure } from '@teleporthq/teleport-types';
/**
 * Splices an import line into the generated _app file, before the first
 * existing import. Idempotent: a second call with the same line is a no-op.
 *
 * Inserting before the first import keeps injected stylesheet imports ahead
 * of `import './style.css'`, so project styles win over library styles on
 * equal specificity.
 */
export declare const injectImportIntoApp: (structure: ProjectPluginStructure, importLine: string) => void;
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