How does keras create its own dataset?

how does keras create its own dataset, which can be directly used by "load_data" like mnist?

(x_train, y_train),(x_test, y_test) = mnist.load_data()

write a module and implement the load_data () function. You can return two tuples like this

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b31560-34136.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b31560-34136.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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