How to use

getFile

method

in

com.intellij.lang.parameterInfo.CreateParameterInfoContext

@Nullable
@Override
public MonkeyArguments findElementForParameterInfo(@NotNull CreateParameterInfoContext context) {
 return findArgumentList(context.getFile(), context.getOffset(), context.getParameterListStart());
}

@Nullable
@Override
public CypherInvocation findElementForParameterInfo(@NotNull CreateParameterInfoContext context) {
  PsiElement at = context.getFile().findElementAt(context.getOffset());
  return PsiTreeUtil.getParentOfType(at, CypherInvocation.class);
}