Returns the raw amazon dynamo DB table schema information. The raw json is presented as an elixir map.
Here is an example of what it may look like
%{"AttributeDefinitions" => [%{"AttributeName" => "id",
"AttributeType" => "S"},
%{"AttributeName" => "person_id", "AttributeType" => "S"}],
"CreationDateTime" => 1489615412.651,
"GlobalSecondaryIndexes" => [%{"IndexArn" => "arn:aws:dynamodb:ddblocal:000000000000:table/circle_members/index/person_id",
"IndexName" => "person_id", "IndexSizeBytes" => 7109,
"IndexStatus" => "ACTIVE", "ItemCount" => 146,
"KeySchema" => [%{"AttributeName" => "person_id", "KeyType" => "HASH"}],
"Projection" => %{"ProjectionType" => "ALL"},
"ProvisionedThroughput" => %{"ReadCapacityUnits" => 100,
"WriteCapacityUnits" => 50}}], "ItemCount" => 146,
"KeySchema" => [%{"AttributeName" => "id", "KeyType" => "HASH"},
%{"AttributeName" => "person_id", "KeyType" => "RANGE"}],
"ProvisionedThroughput" => %{"LastDecreaseDateTime" => 0.0,
"LastIncreaseDateTime" => 0.0, "NumberOfDecreasesToday" => 0,
"ReadCapacityUnits" => 100, "WriteCapacityUnits" => 50},
"TableArn" => "arn:aws:dynamodb:ddblocal:000000000000:table/circle_members",
"TableName" => "circle_members", "TableSizeBytes" => 7109,
"TableStatus" => "ACTIVE"}