src/client/client.go
func (c *APIClient) Ctx() context.Context {
	if c.ctx == nil {
		return c.AddMetadata(context.Background())
	}
	return c.AddMetadata(c.ctx)
}
func (c *APIClient) Ctx() context.Context {
	if c.ctx == nil {
		return c.AddMetadata(context.Background())
	}
	return c.AddMetadata(c.ctx)
}
// Ctx is a convenience function that returns adds Pachyderm authn metadata
// to context.Background().