Function tempo

tempo(config: TempoConfig): OmpxPaymentMethod
Create the Tempo payment method for OMPX.

Tempo is the only Phase 1 payment method that supports both protocols:
- X402: Uses exact/evm scheme with EIP-3009 on Tempo chain
- MPP: Uses tempo method with EIP-3009-encoded transaction payload
Parameters
- config: TempoConfig
Returns OmpxPaymentMethod
Example: Client (consumer)
```
import { tempo } from '@ompx/tempo'
import { privateKeyToAccount } from 'viem/accounts'

const method = tempo({ account: privateKeyToAccount('0x...') })
```
Example: Server (service provider)
```
import { tempo } from '@ompx/tempo'

const method = tempo({
  recipient: '0xYourAddress',
  currency: '0x20c0...', // pathUSD
})
```
- Defined in packages/methods/tempo/src/index.ts:132