setIntervalMining 
Sets the automatic mining interval (in seconds) of blocks. Setting the interval to 0 will disable automatic mining.
Usage 
ts
import { testClient } from './client'
 
await testClient.setIntervalMining({ 
  interval: 5
})
ts
import { createTestClient, http } from 'viem'
import { foundry } from 'viem/chains'
export const testClient = createTestClient({
  chain: foundry,
  mode: 'anvil',
  transport: http(), 
})
Parameters 
interval 
- Type: 
number 
The mining interval (in seconds). Setting the interval to 0 will disable automatic mining.
ts
await testClient.setIntervalMining({
  interval: 5 
})