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

> See Also core.accounts.rule_expression struct rule_ expression { operator: rule_operator ; variable: rule_variable ; value: integer;
} 

Source: https://docs.chromia.com/pages/ft4-rell/-f-t4-library/lib.ft4.core.auth/rule_expression/

STRUCT

# rule\_expression

**See Also**

* `core.accounts.rule_expression`

```signature
struct rule_expression {
 operator: rule_operator;
 variable: rule_variable;
 value: integer;
}
```

[Source](https://gitlab.com/chromaway/ft4-lib/-/blob/development/rell/src/lib/ft4/core/auth/login.rell#lines-182)

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