Function createAccountBalanceForLegacyAccountInstruction

createAccountBalanceForLegacyAccountInstruction(
params: LegacyAccountBalanceInstructionParams,
): Promise<TransactionInstruction | null>
Creates an instruction to retrieve the account balance for a legacy Neon account.
Parameters
- params: LegacyAccountBalanceInstructionParams
  The parameters required for the instruction.
Returns Promise<TransactionInstruction | null>
A promise resolving to a TransactionInstruction for retrieving the account balance, or null if the account does not exist.
Example
```
const instruction = await createAccountBalanceForLegacyAccountInstruction({
  connection,
  account,
  solanaWallet,
  neonEvmProgram,
  chainId: 245022926
});
if (instruction) {
  transaction.add(instruction);
}
```
- Defined in mint-transfer.ts:264