public void addImport(@NotNull PsiElement importable,@NotNull PsiFile file,@Nullable PyImportElement importElement){
  myImports.add(new ImportCandidateHolder(importable,file,importElement,null));
}

public void addImport ( @ NotNull PsiElement importable , @ NotNull PsiFile file , @ Nullable PyImportElement importElement ) { myImports . add ( new ImportCandidateHolder ( importable , file , importElement , null ) ) ; }
adds another import source .
