code: func IsIdentityConfigFullyOverridden(c *IdentityConfigOptions) bool {
  	return !anyNil(c.client, c.caConfig, c.caServerCerts, c.caClientKey, c.caClientCert, c.caKeyStorePath, c.credentialStorePath)
  }
docs: // IsIdentityConfigFullyOverridden will return true if all of the argument's sub interfaces is not nil
  // (ie IdentityConfig interface not fully overridden)