code: func (s *GetCertificateAuthorityCsrInput) SetCertificateAuthorityArn(v string) *GetCertificateAuthorityCsrInput {
  	s.CertificateAuthorityArn = &v
  	return s
  }
docs: // SetCertificateAuthorityArn sets the CertificateAuthorityArn field's value.