def put_item(options = {})
      options = options.merge(table_name: @name)
      resp = @client.put_item(options)
      resp.data
    end
def put_item(options = {})
      options = options.merge(table_name: @name)
      resp = @client.put_item(options)
      resp.data
    end
@example Request syntax with placeholder values

   table.put_item({
     item: { # required
       "AttributeName" => "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
     },
     expected: {
       "AttributeName" => {
         value: "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
         exists: false,
         comparison_operator: "EQ", # accepts EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
         attribute_value_list: ["value"], # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
       },
     },
     return_values: "NONE", # accepts NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW
     return_consumed_capacity: "INDEXES", # accepts INDEXES, TOTAL, NONE
     return_item_collection_metrics: "SIZE", # accepts SIZE, NONE
     conditional_operator: "AND", # accepts AND, OR
     condition_expression: "ConditionExpression",
     expression_attribute_names: {
       "ExpressionAttributeNameVariable" => "AttributeName",
     },
     expression_attribute_values: {
       "ExpressionAttributeValueVariable" => "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
     },
   })
 @param [Hash] options ({})
 @option options [required, Hash<String,Types::AttributeValue>] :item
   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.

   You must provide all of the attributes for the primary key. For
   example, with a simple primary key, you only need to provide a value
   for the partition key. For a composite primary key, you must provide
   both values for both the partition key and the sort key.

   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][1] in the
   *Amazon DynamoDB Developer Guide*.

   Each element in the `Item` map is an `AttributeValue` object.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/DataModel.html#DataModelPrimaryKey
 @option options [Hash<String,Types::ExpectedAttributeValue>] :expected
   This is a legacy parameter. Use `ConditionExpression` instead. For
   more information, see [Expected][1] in the *Amazon DynamoDB Developer
   Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LegacyConditionalParameters.Expected.html
 @option options [String] :return_values
   Use `ReturnValues` if you want to get the item attributes as they
   appeared before they were updated with the `PutItem` request. For
   `PutItem`, the valid values are:

   * `NONE` - If `ReturnValues` is not specified, or if its value is
     `NONE`, then nothing is returned. (This setting is the default for
     `ReturnValues`.)

   * `ALL_OLD` - If `PutItem` overwrote an attribute name-value pair,
     then the content of the old item is returned.

   <note markdown="1"> The `ReturnValues` parameter is used by several DynamoDB operations;
   however, `PutItem` does not recognize any values other than `NONE` or
   `ALL_OLD`.

    </note>
 @option options [String] :return_consumed_capacity
   Determines the level of detail about provisioned throughput
   consumption that is returned in the response:

   * `INDEXES` - The response includes the aggregate `ConsumedCapacity`
     for the operation, together with `ConsumedCapacity` for each table
     and secondary index that was accessed.

     Note that some operations, such as `GetItem` and `BatchGetItem`, do
     not access any indexes at all. In these cases, specifying `INDEXES`
     will only return `ConsumedCapacity` information for table(s).

   * `TOTAL` - The response includes only the aggregate
     `ConsumedCapacity` for the operation.

   * `NONE` - No `ConsumedCapacity` details are included in the response.
 @option options [String] :return_item_collection_metrics
   Determines whether item collection metrics are returned. If set to
   `SIZE`, the response includes statistics about item collections, if
   any, that were modified during the operation are returned in the
   response. If set to `NONE` (the default), no statistics are returned.
 @option options [String] :conditional_operator
   This is a legacy parameter. Use `ConditionExpression` instead. For
   more information, see [ConditionalOperator][1] in the *Amazon DynamoDB
   Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LegacyConditionalParameters.ConditionalOperator.html
 @option options [String] :condition_expression
   A condition that must be satisfied in order for a conditional
   `PutItem` operation to succeed.

   An expression can contain any of the following:

   * Functions: `attribute_exists | attribute_not_exists | attribute_type
     | contains | begins_with | size`

     These function names are case-sensitive.

   * Comparison operators: `= | <> | < | > | <= | >= | BETWEEN | IN `

   * Logical operators: `AND | OR | NOT`

   For more information on condition expressions, see [Specifying
   Conditions][1] in the *Amazon DynamoDB Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.SpecifyingConditions.html
 @option options [Hash<String,String>] :expression_attribute_names
   One or more substitution tokens for attribute names in an expression.
   The following are some use cases for using
   `ExpressionAttributeNames`\:

   * To access an attribute whose name conflicts with a DynamoDB reserved
     word.

   * To create a placeholder for repeating occurrences of an attribute
     name in an expression.

   * To prevent special characters in an attribute name from being
     misinterpreted in an expression.

   Use the **#** character in an expression to dereference an attribute
   name. For example, consider the following attribute name:

   * `Percentile`

   ^

   The name of this attribute conflicts with a reserved word, so it
   cannot be used directly in an expression. (For the complete list of
   reserved words, see [Reserved Words][1] in the *Amazon DynamoDB
   Developer Guide*). To work around this, you could specify the
   following for `ExpressionAttributeNames`\:

   * `\{"#P":"Percentile"\}`

   ^

   You could then use this substitution in an expression, as in this
   example:

   * `#P = :val`

   ^

   <note markdown="1"> Tokens that begin with the **\:** character are *expression attribute
   values*, which are placeholders for the actual value at runtime.

    </note>

   For more information on expression attribute names, see [Accessing
   Item Attributes][2] in the *Amazon DynamoDB Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/ReservedWords.html
   [2]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.AccessingItemAttributes.html
 @option options [Hash<String,Types::AttributeValue>] :expression_attribute_values
   One or more values that can be substituted in an expression.

   Use the **\:** (colon) character in an expression to dereference an
   attribute value. For example, suppose that you wanted to check whether
   the value of the *ProductStatus* attribute was one of the following:

   `Available | Backordered | Discontinued`

   You would first need to specify `ExpressionAttributeValues` as
   follows:

   `\{ ":avail":\{"S":"Available"\}, ":back":\{"S":"Backordered"\},
   ":disc":\{"S":"Discontinued"\} \}`

   You could then use these values in an expression, such as this:

   `ProductStatus IN (:avail, :back, :disc)`

   For more information on expression attribute values, see [Specifying
   Conditions][1] in the *Amazon DynamoDB Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.SpecifyingConditions.html
 @return [Types::PutItemOutput]