Google Cloud Discovery Engine V1 Client - Class SearchRequest (1.2.0)

Reference documentation and code samples for the Google Cloud Discovery Engine V1 Client class SearchRequest.

Request message for SearchService.Search method.

Generated from protobuf message google.cloud.discoveryengine.v1.SearchRequest

Namespace

Google \ Cloud \ DiscoveryEngine \ V1

Methods

__construct

Constructor.

Parameters
Name Description
data array

Optional. Data for populating the Message object.
↳ serving_config string

Required. The resource name of the Search serving config, such as projects/*/locations/global/collections/default_collection/engines/*/servingConfigs/default_serving_config, or projects/*/locations/global/collections/default_collection/dataStores/default_data_store/servingConfigs/default_serving_config. This field is used to identify the serving configuration name, set of models used to make the search.
↳ branch string

The branch resource name, such as projects/*/locations/global/collections/default_collection/dataStores/default_data_store/branches/0. Use default_branch as the branch ID or leave this field empty, to search documents under the default branch.
↳ query string

Raw search query.
↳ image_query Google\Cloud\DiscoveryEngine\V1\SearchRequest\ImageQuery

Raw image query.
↳ page_size int

Maximum number of Documents to return. The maximum allowed value depends on the data type. Values above the maximum value are coerced to the maximum value. * Websites with basic indexing: Default 10, Maximum 25. * Websites with advanced indexing: Default 25, Maximum 50. * Other: Default 50, Maximum 100. If this field is negative, an INVALID_ARGUMENT is returned.
↳ page_token string

A page token received from a previous SearchService.Search call. Provide this to retrieve the subsequent page. When paginating, all other parameters provided to SearchService.Search must match the call that provided the page token. Otherwise, an INVALID_ARGUMENT error is returned.
↳ offset int

A 0-indexed integer that specifies the current offset (that is, starting result location, amongst the Documents deemed by the API as relevant) in search results. This field is only considered if page_token is unset. If this field is negative, an INVALID_ARGUMENT is returned.
↳ one_box_page_size int

The maximum number of results to return for OneBox. This applies to each OneBox type individually. Default number is 10.
↳ data_store_specs array<Google\Cloud\DiscoveryEngine\V1\SearchRequest\DataStoreSpec>

Specs defining dataStores to filter on in a search call and configurations for those dataStores. This is only considered for engines with multiple dataStores use case. For single dataStore within an engine, they should use the specs at the top level.
↳ filter string

The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered. Filter expression is case-sensitive. If this field is unrecognizable, an INVALID_ARGUMENT is returned. Filtering in Vertex AI Search is done by mapping the LHS filter key to a key property defined in the Vertex AI Search backend -- this mapping is defined by the customer in their schema. For example a media customer might have a field 'name' in their schema. In this case the filter would look like this: filter --> name:'ANY("king kong")' For more information about filtering including syntax and filter operators, see Filter
↳ canonical_filter string

The default filter that is applied when a user performs a search without checking any filters on the search page. The filter applied to every search request when quality improvement such as query expansion is needed. In the case a query does not have a sufficient amount of results this filter will be used to determine whether or not to enable the query expansion flow. The original filter will still be used for the query expanded search. This field is strongly recommended to achieve high search quality. For more information about filter syntax, see SearchRequest.filter.
↳ order_by string

The order in which documents are returned. Documents can be ordered by a field in an Document object. Leave it unset if ordered by relevance. order_by expression is case-sensitive. For more information on ordering the website search results, see Order web search results. For more information on ordering the healthcare search results, see Order healthcare search results. If this field is unrecognizable, an INVALID_ARGUMENT is returned.
↳ user_info Google\Cloud\DiscoveryEngine\V1\UserInfo

Information about the end user. Highly recommended for analytics. UserInfo.user_agent is used to deduce device_type for analytics.
↳ language_code string

The BCP-47 language code, such as "en-US" or "sr-Latn". For more information, see Standard fields. This field helps to better interpret the query. If a value isn't specified, the query language code is automatically detected, which may not be accurate.
↳ facet_specs array<Google\Cloud\DiscoveryEngine\V1\SearchRequest\FacetSpec>

Facet specifications for faceted search. If empty, no facets are returned. A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error is returned.
↳ boost_spec Google\Cloud\DiscoveryEngine\V1\SearchRequest\BoostSpec

Boost specification to boost certain documents. For more information on boosting, see Boosting
↳ params array|Google\Protobuf\Internal\MapField

Additional search parameters. For public website search only, supported values are: * user_country_code: string. Default empty. If set to non-empty, results are restricted or boosted based on the location provided. For example, user_country_code: "au" For available codes see Country Codes * search_type: double. Default empty. Enables non-webpage searching depending on the value. The only valid non-default value is 1, which enables image searching. For example, search_type: 1
↳ query_expansion_spec Google\Cloud\DiscoveryEngine\V1\SearchRequest\QueryExpansionSpec

The query expansion specification that specifies the conditions under which query expansion occurs.
↳ spell_correction_spec Google\Cloud\DiscoveryEngine\V1\SearchRequest\SpellCorrectionSpec

The spell correction specification that specifies the mode under which spell correction takes effect.
↳ user_pseudo_id string

A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor logs in or out of the website. This field should NOT have a fixed value such as unknown_visitor. This should be the same identifier as UserEvent.user_pseudo_id and CompleteQueryRequest.user_pseudo_id The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.
↳ content_search_spec Google\Cloud\DiscoveryEngine\V1\SearchRequest\ContentSearchSpec

A specification for configuring the behavior of content search.
↳ safe_search bool

Whether to turn on safe search. This is only supported for website search.
↳ user_labels array|Google\Protobuf\Internal\MapField

The user labels applied to a resource must meet the following requirements: * Each resource can have multiple labels, up to a maximum of 64. * Each label must be a key-value pair. * Keys have a minimum length of 1 character and a maximum length of 63 characters and cannot be empty. Values can be empty and have a maximum length of 63 characters. * Keys and values can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed. * The key portion of a label must be unique. However, you can use the same key with multiple resources. * Keys must start with a lowercase letter or international character. See Google Cloud Document for more details.
↳ search_as_you_type_spec Google\Cloud\DiscoveryEngine\V1\SearchRequest\SearchAsYouTypeSpec

Search as you type configuration. Only supported for the IndustryVertical.MEDIA vertical.
↳ session string

The session resource name. Optional. Session allows users to do multi-turn /search API calls or coordination between /search API calls and /answer API calls. Example #1 (multi-turn /search API calls): 1. Call /search API with the auto-session mode (see below). 2. Call /search API with the session ID generated in the first call. Here, the previous search query gets considered in query standing. I.e., if the first query is "How did Alphabet do in 2022?" and the current query is "How about 2023?", the current query will be interpreted as "How did Alphabet do in 2023?". Example #2 (coordination between /search API calls and /answer API calls): 1. Call /search API with the auto-session mode (see below). 2. Call /answer API with the session ID generated in the first call. Here, the answer generation happens in the context of the search results from the first search call. Auto-session mode: when projects/.../sessions/- is used, a new session gets automatically created. Otherwise, users can use the create-session API to create a session manually. Multi-turn Search feature is currently at private GA stage. Please use v1alpha or v1beta version instead before we launch this feature to public GA. Or ask for allowlisting through Google Support team.
↳ session_spec Google\Cloud\DiscoveryEngine\V1\SearchRequest\SessionSpec

Session specification. Can be used only when session is set.

getServingConfig

Required. The resource name of the Search serving config, such as projects/*/locations/global/collections/default_collection/engines/*/servingConfigs/default_serving_config, or projects/*/locations/global/collections/default_collection/dataStores/default_data_store/servingConfigs/default_serving_config.

This field is used to identify the serving configuration name, set of models used to make the search.

Returns
Type Description
string

setServingConfig

Required. The resource name of the Search serving config, such as projects/*/locations/global/collections/default_collection/engines/*/servingConfigs/default_serving_config, or projects/*/locations/global/collections/default_collection/dataStores/default_data_store/servingConfigs/default_serving_config.

This field is used to identify the serving configuration name, set of models used to make the search.

Parameter
Name Description
var string
Returns
Type Description
$this

getBranch

The branch resource name, such as projects/*/locations/global/collections/default_collection/dataStores/default_data_store/branches/0.

Use default_branch as the branch ID or leave this field empty, to search documents under the default branch.

Returns
Type Description
string

setBranch

The branch resource name, such as projects/*/locations/global/collections/default_collection/dataStores/default_data_store/branches/0.

Use default_branch as the branch ID or leave this field empty, to search documents under the default branch.

Parameter
Name Description
var string
Returns
Type Description
$this

getQuery

Raw search query.

Returns
Type Description
string

setQuery

Raw search query.

Parameter
Name Description
var string
Returns
Type Description
$this

getImageQuery

Raw image query.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\ImageQuery|null

hasImageQuery

clearImageQuery

setImageQuery

Raw image query.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\ImageQuery
Returns
Type Description
$this

getPageSize

Maximum number of Documents to return. The maximum allowed value depends on the data type. Values above the maximum value are coerced to the maximum value.

  • Websites with basic indexing: Default 10, Maximum 25.
  • Websites with advanced indexing: Default 25, Maximum 50.
  • Other: Default 50, Maximum 100. If this field is negative, an INVALID_ARGUMENT is returned.
Returns
Type Description
int

setPageSize

Maximum number of Documents to return. The maximum allowed value depends on the data type. Values above the maximum value are coerced to the maximum value.

  • Websites with basic indexing: Default 10, Maximum 25.
  • Websites with advanced indexing: Default 25, Maximum 50.
  • Other: Default 50, Maximum 100. If this field is negative, an INVALID_ARGUMENT is returned.
Parameter
Name Description
var int
Returns
Type Description
$this

getPageToken

A page token received from a previous SearchService.Search call. Provide this to retrieve the subsequent page.

When paginating, all other parameters provided to SearchService.Search must match the call that provided the page token. Otherwise, an INVALID_ARGUMENT error is returned.

Returns
Type Description
string

setPageToken

A page token received from a previous SearchService.Search call. Provide this to retrieve the subsequent page.

When paginating, all other parameters provided to SearchService.Search must match the call that provided the page token. Otherwise, an INVALID_ARGUMENT error is returned.

Parameter
Name Description
var string
Returns
Type Description
$this

getOffset

A 0-indexed integer that specifies the current offset (that is, starting result location, amongst the Documents deemed by the API as relevant) in search results. This field is only considered if page_token is unset.

If this field is negative, an INVALID_ARGUMENT is returned.

Returns
Type Description
int

setOffset

A 0-indexed integer that specifies the current offset (that is, starting result location, amongst the Documents deemed by the API as relevant) in search results. This field is only considered if page_token is unset.

If this field is negative, an INVALID_ARGUMENT is returned.

Parameter
Name Description
var int
Returns
Type Description
$this

getOneBoxPageSize

The maximum number of results to return for OneBox.

This applies to each OneBox type individually. Default number is 10.

Returns
Type Description
int

setOneBoxPageSize

The maximum number of results to return for OneBox.

This applies to each OneBox type individually. Default number is 10.

Parameter
Name Description
var int
Returns
Type Description
$this

getDataStoreSpecs

Specs defining dataStores to filter on in a search call and configurations for those dataStores. This is only considered for engines with multiple dataStores use case. For single dataStore within an engine, they should use the specs at the top level.

Returns
Type Description
Google\Protobuf\Internal\RepeatedField

setDataStoreSpecs

Specs defining dataStores to filter on in a search call and configurations for those dataStores. This is only considered for engines with multiple dataStores use case. For single dataStore within an engine, they should use the specs at the top level.

Parameter
Name Description
var array<Google\Cloud\DiscoveryEngine\V1\SearchRequest\DataStoreSpec>
Returns
Type Description
$this

getFilter

The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered. Filter expression is case-sensitive.

If this field is unrecognizable, an INVALID_ARGUMENT is returned. Filtering in Vertex AI Search is done by mapping the LHS filter key to a key property defined in the Vertex AI Search backend -- this mapping is defined by the customer in their schema. For example a media customer might have a field 'name' in their schema. In this case the filter would look like this: filter --> name:'ANY("king kong")' For more information about filtering including syntax and filter operators, see Filter

Returns
Type Description
string

setFilter

The filter syntax consists of an expression language for constructing a predicate from one or more fields of the documents being filtered. Filter expression is case-sensitive.

If this field is unrecognizable, an INVALID_ARGUMENT is returned. Filtering in Vertex AI Search is done by mapping the LHS filter key to a key property defined in the Vertex AI Search backend -- this mapping is defined by the customer in their schema. For example a media customer might have a field 'name' in their schema. In this case the filter would look like this: filter --> name:'ANY("king kong")' For more information about filtering including syntax and filter operators, see Filter

Parameter
Name Description
var string
Returns
Type Description
$this

getCanonicalFilter

The default filter that is applied when a user performs a search without checking any filters on the search page.

The filter applied to every search request when quality improvement such as query expansion is needed. In the case a query does not have a sufficient amount of results this filter will be used to determine whether or not to enable the query expansion flow. The original filter will still be used for the query expanded search. This field is strongly recommended to achieve high search quality. For more information about filter syntax, see SearchRequest.filter.

Returns
Type Description
string

setCanonicalFilter

The default filter that is applied when a user performs a search without checking any filters on the search page.

The filter applied to every search request when quality improvement such as query expansion is needed. In the case a query does not have a sufficient amount of results this filter will be used to determine whether or not to enable the query expansion flow. The original filter will still be used for the query expanded search. This field is strongly recommended to achieve high search quality. For more information about filter syntax, see SearchRequest.filter.

Parameter
Name Description
var string
Returns
Type Description
$this

getOrderBy

The order in which documents are returned. Documents can be ordered by a field in an Document object.

Leave it unset if ordered by relevance. order_by expression is case-sensitive. For more information on ordering the website search results, see Order web search results. For more information on ordering the healthcare search results, see Order healthcare search results. If this field is unrecognizable, an INVALID_ARGUMENT is returned.

Returns
Type Description
string

setOrderBy

The order in which documents are returned. Documents can be ordered by a field in an Document object.

Leave it unset if ordered by relevance. order_by expression is case-sensitive. For more information on ordering the website search results, see Order web search results. For more information on ordering the healthcare search results, see Order healthcare search results. If this field is unrecognizable, an INVALID_ARGUMENT is returned.

Parameter
Name Description
var string
Returns
Type Description
$this

getUserInfo

Information about the end user.

Highly recommended for analytics. UserInfo.user_agent is used to deduce device_type for analytics.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\UserInfo|null

hasUserInfo

clearUserInfo

setUserInfo

Information about the end user.

Highly recommended for analytics. UserInfo.user_agent is used to deduce device_type for analytics.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\UserInfo
Returns
Type Description
$this

getLanguageCode

The BCP-47 language code, such as "en-US" or "sr-Latn". For more information, see Standard fields. This field helps to better interpret the query. If a value isn't specified, the query language code is automatically detected, which may not be accurate.

Returns
Type Description
string

setLanguageCode

The BCP-47 language code, such as "en-US" or "sr-Latn". For more information, see Standard fields. This field helps to better interpret the query. If a value isn't specified, the query language code is automatically detected, which may not be accurate.

Parameter
Name Description
var string
Returns
Type Description
$this

getFacetSpecs

Facet specifications for faceted search. If empty, no facets are returned.

A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error is returned.

Returns
Type Description
Google\Protobuf\Internal\RepeatedField

setFacetSpecs

Facet specifications for faceted search. If empty, no facets are returned.

A maximum of 100 values are allowed. Otherwise, an INVALID_ARGUMENT error is returned.

Parameter
Name Description
var array<Google\Cloud\DiscoveryEngine\V1\SearchRequest\FacetSpec>
Returns
Type Description
$this

getBoostSpec

Boost specification to boost certain documents.

For more information on boosting, see Boosting

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\BoostSpec|null

hasBoostSpec

clearBoostSpec

setBoostSpec

Boost specification to boost certain documents.

For more information on boosting, see Boosting

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\BoostSpec
Returns
Type Description
$this

getParams

Additional search parameters.

For public website search only, supported values are:

  • user_country_code: string. Default empty. If set to non-empty, results are restricted or boosted based on the location provided. For example, user_country_code: "au" For available codes see Country Codes
  • search_type: double. Default empty. Enables non-webpage searching depending on the value. The only valid non-default value is 1, which enables image searching. For example, search_type: 1
Returns
Type Description
Google\Protobuf\Internal\MapField

setParams

Additional search parameters.

For public website search only, supported values are:

  • user_country_code: string. Default empty. If set to non-empty, results are restricted or boosted based on the location provided. For example, user_country_code: "au" For available codes see Country Codes
  • search_type: double. Default empty. Enables non-webpage searching depending on the value. The only valid non-default value is 1, which enables image searching. For example, search_type: 1
Parameter
Name Description
var array|Google\Protobuf\Internal\MapField
Returns
Type Description
$this

getQueryExpansionSpec

The query expansion specification that specifies the conditions under which query expansion occurs.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\QueryExpansionSpec|null

hasQueryExpansionSpec

clearQueryExpansionSpec

setQueryExpansionSpec

The query expansion specification that specifies the conditions under which query expansion occurs.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\QueryExpansionSpec
Returns
Type Description
$this

getSpellCorrectionSpec

The spell correction specification that specifies the mode under which spell correction takes effect.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\SpellCorrectionSpec|null

hasSpellCorrectionSpec

clearSpellCorrectionSpec

setSpellCorrectionSpec

The spell correction specification that specifies the mode under which spell correction takes effect.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\SpellCorrectionSpec
Returns
Type Description
$this

getUserPseudoId

A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor logs in or out of the website.

This field should NOT have a fixed value such as unknown_visitor. This should be the same identifier as UserEvent.user_pseudo_id and CompleteQueryRequest.user_pseudo_id The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.

Returns
Type Description
string

setUserPseudoId

A unique identifier for tracking visitors. For example, this could be implemented with an HTTP cookie, which should be able to uniquely identify a visitor on a single device. This unique identifier should not change if the visitor logs in or out of the website.

This field should NOT have a fixed value such as unknown_visitor. This should be the same identifier as UserEvent.user_pseudo_id and CompleteQueryRequest.user_pseudo_id The field must be a UTF-8 encoded string with a length limit of 128 characters. Otherwise, an INVALID_ARGUMENT error is returned.

Parameter
Name Description
var string
Returns
Type Description
$this

getContentSearchSpec

A specification for configuring the behavior of content search.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\ContentSearchSpec|null

hasContentSearchSpec

clearContentSearchSpec

setContentSearchSpec

A specification for configuring the behavior of content search.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\ContentSearchSpec
Returns
Type Description
$this

getSafeSearch

Whether to turn on safe search. This is only supported for website search.

Returns
Type Description
bool

setSafeSearch

Whether to turn on safe search. This is only supported for website search.

Parameter
Name Description
var bool
Returns
Type Description
$this

getUserLabels

The user labels applied to a resource must meet the following requirements:

  • Each resource can have multiple labels, up to a maximum of 64.

  • Each label must be a key-value pair.

  • Keys have a minimum length of 1 character and a maximum length of 63 characters and cannot be empty. Values can be empty and have a maximum length of 63 characters.
  • Keys and values can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed.
  • The key portion of a label must be unique. However, you can use the same key with multiple resources.
  • Keys must start with a lowercase letter or international character. See Google Cloud Document for more details.
Returns
Type Description
Google\Protobuf\Internal\MapField

setUserLabels

The user labels applied to a resource must meet the following requirements:

  • Each resource can have multiple labels, up to a maximum of 64.

  • Each label must be a key-value pair.

  • Keys have a minimum length of 1 character and a maximum length of 63 characters and cannot be empty. Values can be empty and have a maximum length of 63 characters.
  • Keys and values can contain only lowercase letters, numeric characters, underscores, and dashes. All characters must use UTF-8 encoding, and international characters are allowed.
  • The key portion of a label must be unique. However, you can use the same key with multiple resources.
  • Keys must start with a lowercase letter or international character. See Google Cloud Document for more details.
Parameter
Name Description
var array|Google\Protobuf\Internal\MapField
Returns
Type Description
$this

getSearchAsYouTypeSpec

Search as you type configuration. Only supported for the IndustryVertical.MEDIA vertical.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\SearchAsYouTypeSpec|null

hasSearchAsYouTypeSpec

clearSearchAsYouTypeSpec

setSearchAsYouTypeSpec

Search as you type configuration. Only supported for the IndustryVertical.MEDIA vertical.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\SearchAsYouTypeSpec
Returns
Type Description
$this

getSession

The session resource name. Optional.

Session allows users to do multi-turn /search API calls or coordination between /search API calls and /answer API calls. Example #1 (multi-turn /search API calls):

  1. Call /search API with the auto-session mode (see below).
  2. Call /search API with the session ID generated in the first call. Here, the previous search query gets considered in query standing. I.e., if the first query is "How did Alphabet do in 2022?" and the current query is "How about 2023?", the current query will be interpreted as "How did Alphabet do in 2023?". Example #2 (coordination between /search API calls and /answer API calls):
  3. Call /search API with the auto-session mode (see below).
  4. Call /answer API with the session ID generated in the first call. Here, the answer generation happens in the context of the search results from the first search call. Auto-session mode: when projects/.../sessions/- is used, a new session gets automatically created. Otherwise, users can use the create-session API to create a session manually. Multi-turn Search feature is currently at private GA stage. Please use v1alpha or v1beta version instead before we launch this feature to public GA. Or ask for allowlisting through Google Support team.
Returns
Type Description
string

setSession

The session resource name. Optional.

Session allows users to do multi-turn /search API calls or coordination between /search API calls and /answer API calls. Example #1 (multi-turn /search API calls):

  1. Call /search API with the auto-session mode (see below).
  2. Call /search API with the session ID generated in the first call. Here, the previous search query gets considered in query standing. I.e., if the first query is "How did Alphabet do in 2022?" and the current query is "How about 2023?", the current query will be interpreted as "How did Alphabet do in 2023?". Example #2 (coordination between /search API calls and /answer API calls):
  3. Call /search API with the auto-session mode (see below).
  4. Call /answer API with the session ID generated in the first call. Here, the answer generation happens in the context of the search results from the first search call. Auto-session mode: when projects/.../sessions/- is used, a new session gets automatically created. Otherwise, users can use the create-session API to create a session manually. Multi-turn Search feature is currently at private GA stage. Please use v1alpha or v1beta version instead before we launch this feature to public GA. Or ask for allowlisting through Google Support team.
Parameter
Name Description
var string
Returns
Type Description
$this

getSessionSpec

Session specification.

Can be used only when session is set.

Returns
Type Description
Google\Cloud\DiscoveryEngine\V1\SearchRequest\SessionSpec|null

hasSessionSpec

clearSessionSpec

setSessionSpec

Session specification.

Can be used only when session is set.

Parameter
Name Description
var Google\Cloud\DiscoveryEngine\V1\SearchRequest\SessionSpec
Returns
Type Description
$this