AsUnion returns a [SandboxResponseProxyConfigRulesAzureUnion] interface which.
func (r SandboxResponseProxyConfigRulesAzure) AsUnion() SandboxResponseProxyConfigRulesAzureUnionAsUnion returns a [SandboxResponseProxyConfigRulesAzureUnion] interface which you can cast to the specific types for more type safety.
Possible runtime types of the union are [SandboxResponseProxyConfigRulesAzureSandboxesProxyAzureWorkloadIdentityConfig], [SandboxResponseProxyConfigRulesAzureSandboxesProxyAzureAccountKeyConfig], [SandboxResponseProxyConfigRulesAzureSandboxesProxyAzureSasConfig].