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Parent client for calling the Cloud Spanner API.
This is the base from which all interactions with the API occur.
In the hierarchy of API concepts
Classes
Client
Client
(
project
=
None
,
credentials
=
None
,
client_info
=
< google
.
api_core
.
gapic_v1
.
client_info
.
ClientInfo
object
> ,
client_options
=
None
,
query_options
=
None
,
route_to_leader_enabled
=
True
)
Client for interacting with Cloud Spanner API.
project
str
or unicode
(Optional) The ID of the project which owns the instances, tables and data. If not provided, will attempt to determine from the environment.
credentials
Credentials
or :data: NoneType
(Optional) The authorization credentials to attach to requests. These credentials identify this application to the service. If none are specified, the client will attempt to ascertain the credentials from the environment.
client_info
google.api_core.gapic_v1.client_info.ClientInfo
(Optional) The client info used to send a user-agent string along with API requests. If None
, then default info will be used. Generally, you only need to set this if you're developing your own library or partner tool.
client_options
google.api_core.client_options.ClientOptions
or dict
(Optional) Client options used to set user options on the client. API Endpoint should be set through client_options.
query_options
QueryOptions
or dict
(Optional) Query optimizer configuration to use for the given query. If a dict is provided, it must be of the same form as the protobuf message QueryOptions
route_to_leader_enabled
boolean
(Optional) Default True. Set route_to_leader_enabled as False to disable leader aware routing. Disabling leader aware routing would route all requests in RW/PDML transactions to the closest region.
`ValueErro
