import { IEnvironmentVariablesProvider } from '../environment-variables-interfaces/i-environment-variables-provider.interface';
/**
 * A basic implementation of the IEnvironmentVariablesProvider interface that fetches the values
 * from the process.env global variable available from within an AWS Lambda method.
 */
export declare class BaseEnvironmentVariablesProvider implements IEnvironmentVariablesProvider {
    readonly __i_environment_variables_provider__: true;
    private get process();
    private getEnvironmentVariables;
    get(variableName: string): string;
}