// SetMessageDeduplicationId sets the MessageDeduplicationId field's value.
765739
func (s *SendMessageBatchRequestEntry) SetMessageDeduplicationId(v string) *SendMessageBatchRequestEntry {
	s.MessageDeduplicationId = &v
	return s
}
398054
func (s *DeleteNotificationSubscriptionInput) SetSubscriptionId(v string) *DeleteNotificationSubscriptionInput {
	s.SubscriptionId = &v
	return s
}
67514
func (s *SendVoiceMessageOutput) SetMessageId(v string) *SendVoiceMessageOutput {
	s.MessageId = &v
	return s
}
793452
func (s *GetSubscriptionDefinitionVersionInput) SetSubscriptionDefinitionVersionId(v string) *GetSubscriptionDefinitionVersionInput {
	s.SubscriptionDefinitionVersionId = &v
	return s
}
1373877
func (s *GCMChannelResponse) SetApplicationId(v string) *GCMChannelResponse {
	s.ApplicationId = &v
	return s
}
486830
func (s *EndpointMessageResult) SetMessageId(v string) *EndpointMessageResult {
	s.MessageId = &v
	return s
}
1218515
func (s *Comment) SetCommentId(v string) *Comment {
	s.CommentId = &v
	return s
}
174919
func (s *ActiveViolation) SetViolationId(v string) *ActiveViolation {
	s.ViolationId = &v
	return s
}
845661
func (s *ApplicationInfo) SetApplicationId(v string) *ApplicationInfo {
	s.ApplicationId = &v
	return s
}
1209774
func (s *ServiceSpecificCredentialMetadata) SetServiceSpecificCredentialId(v string) *ServiceSpecificCredentialMetadata {
	s.ServiceSpecificCredentialId = &v
	return s
}
1159842
func (s *SendBounceInput) SetOriginalMessageId(v string) *SendBounceInput {
	s.OriginalMessageId = &v
	return s
}
16254
func (s *DeleteSubscriptionDefinitionInput) SetSubscriptionDefinitionId(v string) *DeleteSubscriptionDefinitionInput {
	s.SubscriptionDefinitionId = &v
	return s
}
258974
func (s *SendRawEmailOutput) SetMessageId(v string) *SendRawEmailOutput {
	s.MessageId = &v
	return s
}
103572
func (s *UpdateApplicationOutput) SetApplicationId(v string) *UpdateApplicationOutput {
	s.ApplicationId = &v
	return s
}
1113103
func (s *MaintenanceWindowExecutionTaskInvocationIdentity) SetWindowExecutionId(v string) *MaintenanceWindowExecutionTaskInvocationIdentity {
	s.WindowExecutionId = &v
	return s
}
534968
func (s *MessageResult) SetMessageId(v string) *MessageResult {
	s.MessageId = &v
	return s
}
880605
func (m *Message) setMessageId(s string) {
	if m.MessageId == "" {
		m.MessageId = s
	}
}