import type { Caller, Chart, Collection, DataSource, DataSourceSchema } from '@forestadmin/datasource-toolkit';
export default class CompositeDatasource<T extends Collection = Collection> implements DataSource<T> {
    private dataSources;
    get nativeQueryConnections(): Record<string, unknown>;
    get schema(): DataSourceSchema;
    get collections(): T[];
    getCollection(name: string): T;
    addDataSource(dataSource: DataSource): void;
    renderChart(caller: Caller, name: string, parameters?: Record<string, string>): Promise<Chart>;
    executeNativeQuery(connectionName: string, query: string, contextVariables?: {}): Promise<unknown>;
}
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