import { BaseLogger as OasisLogger } from 'pino';
export { OasisLogger };
/**
 * Deduces the appropriate debug level for logger named `name` from environment variables,
 * as described in `oasisLogger()`.
 **/
export declare function logLevelFromEnv(name: string): string;
/**
 * Constructs a new logger named `name` with oasis-default configuration (JSON logs, UTC times, etc).
 * The logging level is determined via the OASIS_SDK_LOG_LEVEL variable, which is parsed as a simple
 * logging spec.
 *
 * Example: `OASIS_SDK_LOG_LEVEL='warn,gateway=error,http.*auth=trace'` is interpreted as:
 *  - Every logger should log at level "warn".
 *  - Loggers whose name contains "gateway" should log at level "error"
 *  - Loggers whose name matches the regex "http.*auth" should log at "trace"
 *
 * The default logging level is "silent". If a logger name matches multiple rules, the last rule prevails.
 * The spec can be very simple, e.g. `OASIS_SDK_LOG_LEVEL=warn`.
 */
export declare function oasisLogger(name: string): OasisLogger;
/**
 *  Returns the current stack trace in a human-readable format.
 */
export declare function stackTrace(): string;