sdk.tap.balance()

Parameters: None.

Return Value:
The amount of the asset owned by the SDK.

{
    // example of USDT asset ID
    "53b1309c60afd64068025de0c2a3d0bc01952cb6d8b0f9126da54dbda2d06ccf": 123
    "some_other_asset_id": 99
}