import { AxiosRequestConfig } from 'axios';
import aws4 from 'aws4';
import { AxiosResponse } from 'axios';
import { CLOUD_PROVIDERS } from './providers';
import { S3RequestOptions, SERVICE_PROVIDER_CONFIG, S3UploadBufferOptions, S3UploadDataUrlOptions, S3GetOptions, S3PresignedUploadOptions } from './types';
export declare class FileNotFoundError extends Error {
    constructor(message: string);
}
export declare const getCloudUrl: (options: S3RequestOptions) => string;
export declare const getFileKey: (options: S3RequestOptions) => string;
export declare const getProviderConfig: (provider: CLOUD_PROVIDERS) => SERVICE_PROVIDER_CONFIG;
export declare const getS3RequestObject: (options: S3RequestOptions, extendedRequestOptions?: {
    method: "GET" | "PUT" | "POST" | "DELETE" | "HEAD" | "OPTIONS" | "PATCH" | "TRACE";
    [k: string]: any;
}) => aws4.Request;
export declare const s3Request: (options: S3RequestOptions, extendedRequestOptions?: {
    method: "GET" | "PUT" | "POST" | "DELETE" | "HEAD" | "OPTIONS" | "PATCH" | "TRACE";
    [k: string]: any;
}) => Promise<AxiosResponse<any, any, {}>>;
export declare const uploadBuffer: (options: S3UploadBufferOptions) => Promise<string>;
export declare const upload: (options: S3UploadDataUrlOptions) => Promise<string>;
export declare const getObjectBinary: (options: S3GetOptions) => Promise<any>;
export declare const getTextFile: (options: S3GetOptions) => Promise<string>;
export declare const getObjectBuffer: (options: S3GetOptions) => Promise<Buffer>;
export declare const getObjectDataUrl: (options: S3GetOptions) => Promise<string>;
export declare const getObject: (options: S3GetOptions, axiosOverride?: AxiosRequestConfig) => Promise<AxiosResponse>;
export declare const getPresignedUrl: (options: S3GetOptions, axiosOverride?: AxiosRequestConfig) => Promise<string>;
export declare const getPresignedUploadUrl: (options: S3PresignedUploadOptions) => Promise<string>;
export declare const deleteObject: (options: S3GetOptions, axiosOverride?: AxiosRequestConfig) => Promise<boolean>;
export declare const getObjectMetadata: (options: S3GetOptions, axiosOverride?: AxiosRequestConfig) => Promise<{
    [k: string]: string;
}>;
export declare const objectExists: (options: S3GetOptions, axiosOverride?: AxiosRequestConfig) => Promise<boolean>;
export declare const getObjectEtag: (options: S3GetOptions, axiosOverride?: AxiosRequestConfig) => Promise<string>;