A map of attribute name/value pairs, one for each attribute. Only the primary key attributes are required; you can optionally provide other attribute name-value pairs for the item. If you specify any attributes that are part of an index key, then the data types for those attributes must match those of the schema in the table's attribute definition. For more information about primary keys, see Primary Key in the Amazon DynamoDB Developer Guide. Each element in the Item map is an AttributeValue object.

public Dictionary<string, AttributeValue> Item { get; set; }