Create HttpRequest object using Groovy script

Hi all,

I'm trying to create com.eviware.soapui.impl.support.http.HttpRequest object in the groovy script instead of adding usual HTTP Test Request test step into test case:

I can get this object from existing HTTP Test Request:

def ts = testRunner.testCase.testSteps["HTTPTestRequest"];
def HttpRequest request = ts.getTestRequest();

But i can't create this object, because instance of com.eviware.soapui.config.HttpRequestConfig is required:

HttpRequest request = new HttpRequest( config, false );

Where I can get correct implementation of HttpRequestConfig interface?

Waiting for your advices