# swap > Money flow `std.money_flows.swap`, source `open/hsx/std/money_flows/swap.hsx`. - Exports: 1 - Ports: none ## swap No doc comment. - Form: `instrument` - Application form: `instrument swap(between: list, amounts: block, fees: block, release: condition, dispute: condition, side_names: optional, lifecycle_state_order: optional>, action_bindings: optional, parked_states: optional, fixed_prefix: optional)` - Type parameters: C | Parameter | Declared as | | --- | --- | | `between` | `between: list` | | `amounts` | `amounts: block` | | `fees` | `fees: block` | | `release` | `release: condition` | | `dispute` | `dispute: condition` | | `side_names` | `side_names: optional` | | `lifecycle_state_order` | `lifecycle_state_order: optional>` | | `action_bindings` | `action_bindings: optional` | | `parked_states` | `parked_states: optional` | | `fixed_prefix` | `fixed_prefix: optional` |