code: func (ccpack *SignedCDSPackage) GetDepSpecBytes() []byte {
  	//this has to be after creating a package and initializing it
  	//If those steps fail, GetDepSpecBytes() should never be called
  	if ccpack.sDepSpec == nil || ccpack.sDepSpec.ChaincodeDeploymentSpec == nil {
  		panic("GetDepSpecBytes called on uninitialized package")
  	}
  	return ccpack.sDepSpec.ChaincodeDeploymentSpec
  }
docs: // GetDepSpecBytes gets the serialized ChaincodeDeploymentSpec from the package