code: func DefaultVaultConfig() *VaultConfig {
  	v := &VaultConfig{
  		Retry:     DefaultRetryConfig(),
  		SSL:       DefaultSSLConfig(),
  		Transport: DefaultTransportConfig(),
  	}
  
  	// Force SSL when communicating with Vault.
  	v.SSL.Enabled = Bool(true)
  
  	return v
  }
docs: // DefaultVaultConfig returns a configuration that is populated with the
  // default values.