> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Operator ## Example Usage ```go theme={null} import ( "github.com/OpenRouterTeam/go-sdk/models/components" ) value := components.OperatorEquals // Open enum: custom values can be created with a direct type cast custom := components.Operator("custom_value") ``` ## Values | Name | Value | | --------------------- | ------------- | | `OperatorEquals` | equals | | `OperatorNotEquals` | not\_equals | | `OperatorContains` | contains | | `OperatorNotContains` | not\_contains | | `OperatorRegex` | regex | | `OperatorStartsWith` | starts\_with | | `OperatorEndsWith` | ends\_with | | `OperatorGt` | gt | | `OperatorLt` | lt | | `OperatorGte` | gte | | `OperatorLte` | lte | | `OperatorExists` | exists | | `OperatorNotExists` | not\_exists |