import { LOG_LEVEL, LoggerAdaptToConsoleOptions, LoggerEnvironmentConfig, ResolvedLoggerAdaptToConsoleOptions } from './types';
type ConfiguredEnvValueGetter = (envVarName: string) => any;
export declare function createDefaultLoggerEnvironmentConfig(): LoggerEnvironmentConfig;
export declare function createConfiguredEnvValueGetter(envOptionOverrides: Record<string, any>): ConfiguredEnvValueGetter;
export declare function loadLoggerEnvironmentConfig(getConfiguredEnvValue: ConfiguredEnvValueGetter): LoggerEnvironmentConfig;
export declare function buildEnvOptionOverrides(options?: LoggerAdaptToConsoleOptions): Record<string, any>;
export declare function resolveLoggerAdaptToConsoleOptions(options: LoggerAdaptToConsoleOptions | undefined, getConfiguredEnvValue: ConfiguredEnvValueGetter): ResolvedLoggerAdaptToConsoleOptions;
export declare function normalizeLogLevelValue(value: any, defaultLevel?: LOG_LEVEL): LOG_LEVEL;
export {};