List internal wallets

Gets a list of internal wallets.
Note:

• BTC-based assets belonging to whitelisted addresses cannot be retrieved between 00:00 UTC and 00:01 UTC daily due to third-party provider, Blockchain, being unavailable for this 60 second period. Please wait until the next minute to retrieve BTC-based assets.
• The list of assets returned will NOT include the balances anymore.
  Internal Wallets are whitelisted wallets that belong to you outside of Fireblocks.
• You can see the balance of the Internal Wallet via Fireblocks - You cannot initiate transactions from Internal Wallets through Fireblocks
  Learn more about Whitelisted Internal Addresses here
  
  Endpoint Permission: Admin, Non-Signing Admin, Signer, Approver, Editor, Viewer.