Function getLastStakingReward

getLastStakingReward(endpoint, stakeAccountAddress): Promise<null | StakeRewardParams>
Retrieves the last staking reward for a given stake account on the Solana blockchain.
Parameters
- endpoint: string
  The URL of the Solana RPC endpoint.
- stakeAccountAddress: string
  The public key of the stake account.
Returns Promise<null | StakeRewardParams>
An object containing the details of the last staking reward, or null if no rewards are found.
Example
```
const endpoint = 'https://api.mainnet-beta.solana.com'
const stakeAccountAddress = 'ExampleStakeAccountAddress'

const reward = await getLastStakingReward(endpoint, stakeAccountAddress)
if (reward) {
  console.log(`Last reward: ${JSON.stringify(reward)}`)
} else {
  console.log('No rewards found.')
}
```
- Defined in src/lib/getLastStakingReward.ts:23