Hyperliquid-python-sdk

Makes rounding check less conservative

Update signing on testnet

Add support for bulk_orders and bulk_cancel

Fixes placing tpsl orders
Also adds support for more info endpoints

**Full Changelog**: https://github.com/hyperliquid-dex/hyperliquid-python-sdk/compare/0.1.8...0.1.9

Adds support for updating leverage and adjusting isolated margin

Adds support for trading as a vault