Returns information about the table, including the current status of the
table, when it was created, the primary key schema, and any indexes on
the table.
If you issue a DescribeTable request immediately after a CreateTable
request, DynamoDB might return a ResourceNotFoundException. This is
because DescribeTable uses an eventually consistent query, and the
metadata for your table might not be available at that moment. Wait for
a few seconds, and then try the DescribeTable request again.