GetNetwork gets current network details from 0chain network.

GetNode Returns Node instance.

Init Initializes SDK.

InitSDK Initialize the storage SDK - walletJSON: Client's wallet JSON - blockWorker: Block worker URL (block worker refers to 0DNS) - chainID: ID of the blokcchain network - signatureScheme: Signature scheme that will be used for signing transactions - preferredBlobbers: List of preferred blobbers to use when creating an allocation.

SetAuthUrl will be called by app to set zauth URL to SDK.

splitKeyWallet parameter is valid only if SignatureScheme is "BLS0Chain".

SetWallet should be set before any transaction or client specific APIs.

SetWalletMode sets current wallet split key mode.

maintains client's information.

Node Maintains central states of SDK (client's context, network).

SCRestAPIHandler is a function type to handle the response from the SC Rest API `response` - the response from the SC Rest API `numSharders` - the number of sharders that responded `err` - the error if any.