How to configure a different polling interval in Truffle?

How does one configure either Truffle itself, or Truffle's HDWalletProvider such that the poll interval is different?

I would like my Truffle instance to be less "chatty" over JSON-RPC, when it has submitted a transaction and is waiting for a result, be decreasing the polling interval from it's default value.

I was not able to find this option in the following documentation:

• https://www.trufflesuite.com/docs/truffle/reference/configuration#networks
• https://github.com/trufflesuite/truffle/tree/master/packages/hdwallet-provider#instantiation

In truffle-config.js, within networks:

    testnet: {
      provider: () => new HDWalletProvider(
        SEED_PHRASE,
        'https://localhost:4444/',
      ),
      gasPrice: Math.floor(GAS_PRICE),
      networkCheckTimeout: 1e3,
    },

Patched @truffle/hdwallet-provider to add pollingInterval. This is now available in truffle@5.1.52.

Patched truffle to add deploymentPollingInterval. This is now available in truffle@5.1.53.

Example:

    testnet: {
      provider: () => new HDWalletProvider({
        mnemonic: {
          phrase: SEED_PHRASE,
        },
        providerOrUrl: 'http://localhost:4444',
        pollingInterval: 8000,
      }),
      gasPrice: Math.floor(GAS_PRICE),
      networkCheckTimeout: 8000,
      deploymentPollingInterval: 8000,
    },

When unspecified, the default value for pollingInterval and deploymentPollingInterval are both 4000; so the above example has the effect of making it half as "chatty" over JSON-RPC, when polling for blocks, and when running truffle migrate.