# is_strategy_op · FT4 Rell API · Chromia Docs (concept)

> function is_ strategy_ op(op: gtx_ operation): boolean Checks whether an operation is a strategy operation that can be used on this chain.
Strategy operati

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.accounts.strategies/is_strategy_op/

FUNCTION

# is\_strategy\_op

```signature
function is_strategy_op(op: gtx_operation): boolean
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/core/accounts/strategies/module.rell#lines-272)

Checks whether an operation is a strategy operation that can be used on this chain.
Strategy operations not registered through extensions of `strategy` will return false,
as they won't be usable on this chain.

**Parameters**

* **op** — the operation to check

[View this page on docs.chromia.com](https://docs.chromia.com/pages/ft4-rell/-f-t4%20-library/lib.ft4.core.accounts.strategies/is_strategy_op.html)Generated API reference, mirrored from the live docs