class Google::Cloud::Spanner::V1::Spanner::Client

def self.configure
  @configure ||= begin
    namespace = ["Google", "Cloud", "Spanner", "V1"]
    parent_config = while namespace.any?
                      parent_name = namespace.join "::"
                      parent_const = const_get parent_name
                      break parent_const.configure if parent_const.respond_to? :configure
                      namespace.pop
                    end
    default_config = Client::Configuration.new parent_config
    default_config.rpcs.create_session.timeout = 30.0
    default_config.rpcs.create_session.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.batch_create_sessions.timeout = 60.0
    default_config.rpcs.batch_create_sessions.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.get_session.timeout = 30.0
    default_config.rpcs.get_session.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.list_sessions.timeout = 3600.0
    default_config.rpcs.list_sessions.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.delete_session.timeout = 30.0
    default_config.rpcs.delete_session.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.execute_sql.timeout = 30.0
    default_config.rpcs.execute_sql.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.execute_streaming_sql.timeout = 3600.0
    default_config.rpcs.execute_batch_dml.timeout = 30.0
    default_config.rpcs.execute_batch_dml.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.read.timeout = 30.0
    default_config.rpcs.read.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.streaming_read.timeout = 3600.0
    default_config.rpcs.begin_transaction.timeout = 30.0
    default_config.rpcs.begin_transaction.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.commit.timeout = 3600.0
    default_config.rpcs.commit.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.rollback.timeout = 30.0
    default_config.rpcs.rollback.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.partition_query.timeout = 30.0
    default_config.rpcs.partition_query.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.partition_read.timeout = 30.0
    default_config.rpcs.partition_read.retry_policy = {
      initial_delay: 0.25, max_delay: 32.0, multiplier: 1.3, retry_codes: [14, 8]
    }
    default_config.rpcs.batch_write.timeout = 3600.0
    default_config
  end
  yield @configure if block_given?
  @configure
end