class CVirtualAnimParameter : public CAnimParameterBase
{
public:
    CUtlString m_expressionString;
    AnimParamType_t m_eParamType;
};

KV3 Class Defaults

{
    _class = "CVirtualAnimParameter"
    m_name = "Unnamed Parameter"
    m_sComment = ""
    m_group = ""
    m_id = 
    {
        m_id = 4294967295
    }
    m_componentName = ""
    m_bNetworkingRequested = false
    m_bIsReferenced = false
    m_expressionString = ""
    m_eParamType = "ANIMPARAM_FLOAT"
}