code: func (b *BigIP) GetCertificate(name string) (*Certificate, error) {
  	var cert Certificate
  	err, ok := b.getForEntity(&cert, uriSys, uriFile, uriSslCert, name)
  	if err != nil {
  		return nil, err
  	}
  	if !ok {
  		return nil, nil
  	}
  
  	return &cert, nil
  }
docs: // GetCertificate retrieves a Certificate by name. Returns nil if the certificate does not exist