Changes to Get memory usage history

removed the media type application/json for the response with the status 400

removed the media type application/json for the response with the status 401

removed the media type application/json for the response with the status 500

the response property items/human_friendly_time became nullable for the status 200

the items/human_friendly_time response's property type changed from string to string null, and format from date-time to no format for status 200

the items/usedPercent response's property format changed from float to double for status 200

api operation id history was added

the endpoint scheme security bearerAuth was added to the API

for the query request parameter from, the format was generalized from date-time to no format

for the query request parameter to, the format was generalized from date-time to no format

the response property items/available became required for the status 200

the response property items/free became required for the status 200

the response property items/time became required for the status 200

the response property items/total became required for the status 200

the response property items/used became required for the status 200

the response property items/usedPercent became required for the status 200