exported: exported type PrepareStepFunctionOptions should have comment or be unexported (revive)

exported: exported type StopCondition should have comment or be unexported (revive)

exported: exported type StepResult should have comment or be unexported (revive)

package-comments: should have a package comment (revive)

`if err == nil` has complex nested blocks (complexity: 7) (nestif)

`if call.PrepareStep != nil` has complex nested blocks (complexity: 6) (nestif)

`if result.IsError` has complex nested blocks (complexity: 7) (nestif)

`if opts.PrepareStep != nil` has complex nested blocks (complexity: 6) (nestif)

missing cases in switch of type reflect.Kind: reflect.Invalid, reflect.Uintptr, reflect.Complex64, reflect.Complex128, reflect.Chan, reflect.Func, reflect.Pointer|reflect.Ptr, reflect.UnsafePointer (exhaustive)

missing cases in switch of type ai.StreamPartType: ai.StreamPartTypeToolResult (exhaustive)