Parameters
The address of the account being queried
The block number in integer, block hash or block tag(earliest and latest)
Returns
The account information, or null if the account does not exist
Indicates the type of the account
The account object which contains the following fields:
The number of transactions sent from this account
The balance of the account, represented in hexadecimal format
A boolean indicating whether the account address is in a human-readable format
The key object which contains the following fields:
Indicates the type of key
An object containing the key data
The root hash of the account's storage trie
The hash of the account's smart contract code, if any
Indicates the format of the account's code
The version of the virtual machine used to execute the account's code