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

   table.scan({
     index_name: "IndexName",
     attributes_to_get: ["AttributeName"],
     limit: 1,
     select: "ALL_ATTRIBUTES", # accepts ALL_ATTRIBUTES, ALL_PROJECTED_ATTRIBUTES, SPECIFIC_ATTRIBUTES, COUNT
     scan_filter: {
       "AttributeName" => {
         attribute_value_list: ["value"], # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
         comparison_operator: "EQ", # required, accepts EQ, NE, IN, LE, LT, GE, GT, BETWEEN, NOT_NULL, NULL, CONTAINS, NOT_CONTAINS, BEGINS_WITH
       },
     },
     conditional_operator: "AND", # accepts AND, OR
     exclusive_start_key: {
       "AttributeName" => "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
     },
     return_consumed_capacity: "INDEXES", # accepts INDEXES, TOTAL, NONE
     total_segments: 1,
     segment: 1,
     projection_expression: "ProjectionExpression",
     filter_expression: "ConditionExpression",
     expression_attribute_names: {
       "ExpressionAttributeNameVariable" => "AttributeName",
     },
     expression_attribute_values: {
       "ExpressionAttributeValueVariable" => "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
     },
     consistent_read: false,
   })
 @param [Hash] options ({})
 @option options [String] :index_name
   The name of a secondary index to scan. This index can be any local
   secondary index or global secondary index. Note that if you use the
   `IndexName` parameter, you must also provide `TableName`.
 @option options [Array<String>] :attributes_to_get
   This is a legacy parameter. Use `ProjectionExpression` instead. For
   more information, see [AttributesToGet][1] in the *Amazon DynamoDB
   Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LegacyConditionalParameters.AttributesToGet.html
 @option options [Integer] :limit
   The maximum number of items to evaluate (not necessarily the number of
   matching items). If DynamoDB processes the number of items up to the
   limit while processing the results, it stops the operation and returns
   the matching values up to that point, and a key in `LastEvaluatedKey`
   to apply in a subsequent operation, so that you can pick up where you
   left off. Also, if the processed data set size exceeds 1 MB before
   DynamoDB reaches this limit, it stops the operation and returns the
   matching values up to the limit, and a key in `LastEvaluatedKey` to
   apply in a subsequent operation to continue the operation. For more
   information, see [Query and Scan][1] in the *Amazon DynamoDB Developer
   Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/QueryAndScan.html
 @option options [String] :select
   The attributes to be returned in the result. You can retrieve all item
   attributes, specific item attributes, the count of matching items, or
   in the case of an index, some or all of the attributes projected into
   the index.

   * `ALL_ATTRIBUTES` - Returns all of the item attributes from the
     specified table or index. If you query a local secondary index, then
     for each matching item in the index DynamoDB will fetch the entire
     item from the parent table. If the index is configured to project
     all item attributes, then all of the data can be obtained from the
     local secondary index, and no fetching is required.

   * `ALL_PROJECTED_ATTRIBUTES` - Allowed only when querying an index.
     Retrieves all attributes that have been projected into the index. If
     the index is configured to project all attributes, this return value
     is equivalent to specifying `ALL_ATTRIBUTES`.

   * `COUNT` - Returns the number of matching items, rather than the
     matching items themselves.

   * `SPECIFIC_ATTRIBUTES` - Returns only the attributes listed in
     `AttributesToGet`. This return value is equivalent to specifying
     `AttributesToGet` without specifying any value for `Select`.

     If you query or scan a local secondary index and request only
     attributes that are projected into that index, the operation will
     read only the index and not the table. If any of the requested
     attributes are not projected into the local secondary index,
     DynamoDB will fetch each of these attributes from the parent table.
     This extra fetching incurs additional throughput cost and latency.

     If you query or scan a global secondary index, you can only request
     attributes that are projected into the index. Global secondary index
     queries cannot fetch attributes from the parent table.

   If neither `Select` nor `AttributesToGet` are specified, DynamoDB
   defaults to `ALL_ATTRIBUTES` when accessing a table, and
   `ALL_PROJECTED_ATTRIBUTES` when accessing an index. You cannot use
   both `Select` and `AttributesToGet` together in a single request,
   unless the value for `Select` is `SPECIFIC_ATTRIBUTES`. (This usage is
   equivalent to specifying `AttributesToGet` without any value for
   `Select`.)

   <note markdown="1"> If you use the `ProjectionExpression` parameter, then the value for
   `Select` can only be `SPECIFIC_ATTRIBUTES`. Any other value for
   `Select` will return an error.

    </note>
 @option options [Hash<String,Types::Condition>] :scan_filter
   This is a legacy parameter. Use `FilterExpression` instead. For more
   information, see [ScanFilter][1] in the *Amazon DynamoDB Developer
   Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/LegacyConditionalParameters.ScanFilter.html
 @option options [String] :conditional_operator
   This is a legacy parameter. Use `FilterExpression` 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 [Hash<String,Types::AttributeValue>] :exclusive_start_key
   The primary key of the first item that this operation will evaluate.
   Use the value that was returned for `LastEvaluatedKey` in the previous
   operation.

   The data type for `ExclusiveStartKey` must be String, Number or
   Binary. No set data types are allowed.

   In a parallel scan, a `Scan` request that includes `ExclusiveStartKey`
   must specify the same segment whose previous `Scan` returned the
   corresponding value of `LastEvaluatedKey`.
 @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 [Integer] :total_segments
   For a parallel `Scan` request, `TotalSegments` represents the total
   number of segments into which the `Scan` operation will be divided.
   The value of `TotalSegments` corresponds to the number of application
   workers that will perform the parallel scan. For example, if you want
   to use four application threads to scan a table or an index, specify a
   `TotalSegments` value of 4.

   The value for `TotalSegments` must be greater than or equal to 1, and
   less than or equal to 1000000. If you specify a `TotalSegments` value
   of 1, the `Scan` operation will be sequential rather than parallel.

   If you specify `TotalSegments`, you must also specify `Segment`.
 @option options [Integer] :segment
   For a parallel `Scan` request, `Segment` identifies an individual
   segment to be scanned by an application worker.

   Segment IDs are zero-based, so the first segment is always 0. For
   example, if you want to use four application threads to scan a table
   or an index, then the first thread specifies a `Segment` value of 0,
   the second thread specifies 1, and so on.

   The value of `LastEvaluatedKey` returned from a parallel `Scan`
   request must be used as `ExclusiveStartKey` with the same segment ID
   in a subsequent `Scan` operation.

   The value for `Segment` must be greater than or equal to 0, and less
   than the value provided for `TotalSegments`.

   If you provide `Segment`, you must also provide `TotalSegments`.
 @option options [String] :projection_expression
   A string that identifies one or more attributes to retrieve from the
   specified table or index. These attributes can include scalars, sets,
   or elements of a JSON document. The attributes in the expression must
   be separated by commas.

   If no attribute names are specified, then all attributes will be
   returned. If any of the requested attributes are not found, they will
   not appear in the result.

   For more information, see [Accessing Item Attributes][1] in the
   *Amazon DynamoDB Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Expressions.AccessingItemAttributes.html
 @option options [String] :filter_expression
   A string that contains conditions that DynamoDB applies after the
   `Scan` operation, but before the data is returned to you. Items that
   do not satisfy the `FilterExpression` criteria are not returned.

   <note markdown="1"> A `FilterExpression` is applied after the items have already been
   read; the process of filtering does not consume any additional read
   capacity units.

    </note>

   For more information, see [Filter Expressions][1] in the *Amazon
   DynamoDB Developer Guide*.



   [1]: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/QueryAndScan.html#FilteringResults
 @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
 @option options [Boolean] :consistent_read
   A Boolean value that determines the read consistency model during the
   scan:

   * If `ConsistentRead` is `false`, then the data returned from `Scan`
     might not contain the results from other recently completed write
     operations (PutItem, UpdateItem or DeleteItem).

   * If `ConsistentRead` is `true`, then all of the write operations that
     completed before the `Scan` began are guaranteed to be contained in
     the `Scan` response.

   The default setting for `ConsistentRead` is `false`.

   The `ConsistentRead` parameter is not supported on global secondary
   indexes. If you scan a global secondary index with `ConsistentRead`
   set to true, you will receive a `ValidationException`.
 @return [Types::ScanOutput]