Classification
An investor classification: a named group of investors, such as Sophisticated Investor.
idrequiredinteger- The classification id. Classifications keep the integer ids they have always had.
labelrequiredstring- The name investors and staff see, such as Sophisticated Investor.
member_countrequiredinteger- How many investors hold the classification now.
created_atrequiredstring (date-time)- When the classification was created.
updated_atrequiredstring | null (date-time)- When the classification last changed.