InquiryOption to specify which information to retrieve.
- INQUIRY_ENTITY: Only the target entity itself is returned in response.
This InquiryOption is faster than other options as it reads the single entity from the database.
- INQUIRY_OVERVIEW: The target entity's overview information is returned in response.
In general, the overview information includes the brief content of the target entity and its related entities.
This InquiryOption is slower than INQUIRY_ENTITY but the returned data size is usually smaller than that.
- INQUIRY_ALL: The target entity and its summary information is returned in response.
This InquiryOption is equivalent to INQUIRY_ENTITY + INQUIRY_OVERVIEW, and it's slow and big.
