instance_idstrCloud Spanner instance ID.
configuration_namestrThe name of the Cloud Spanner instance configuration defining how the instance will be created. Required for instances that do not yet exist.
node_countint(Optional) The number of nodes allocated to the Cloud Spanner instance.
display_namestr(Optional) The display name for the Cloud Spanner instance in the Google Cloud Console. (Must be between 4 and 30 characters.) If this value is not set in the constructor, the name is the same as the instance ID.
project_idstrOptional, the ID of the project which owns the Cloud Spanner Database. If set to None or missing, the default project_id from the Google Cloud connection is used.
gcp_conn_idstrThe connection ID used to connect to Google Cloud.
impersonation_chainUnion[str, Sequence[str]]Optional service account to impersonate using short-term credentials, or chained list of accounts required to get the access_token of the last account in the list, which will be impersonated in the request. If set as a string, the account must grant the originating account the Service Account Token Creator IAM role. If set as a sequence, the identities from the list must grant Service Account Token Creator IAM role to the directly preceding identity, with first account from the list granting this role to the originating account (templated).