public static final class Attachment.Builder extends GeneratedMessageV3.Builder<Attachment.Builder> implements AttachmentOrBuilderAn attachment in Google Chat.
 Protobuf type google.chat.v1.Attachment
Inheritance
Object > AbstractMessageLite.Builder<MessageType,BuilderType> > AbstractMessage.Builder<BuilderType> > GeneratedMessageV3.Builder > Attachment.BuilderImplements
AttachmentOrBuilderStatic Methods
getDescriptor()
public static final Descriptors.Descriptor getDescriptor()| Returns | |
|---|---|
| Type | Description | 
Descriptor | 
        |
Methods
addRepeatedField(Descriptors.FieldDescriptor field, Object value)
public Attachment.Builder addRepeatedField(Descriptors.FieldDescriptor field, Object value)| Parameters | |
|---|---|
| Name | Description | 
field | 
        FieldDescriptor | 
      
value | 
        Object | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
build()
public Attachment build()| Returns | |
|---|---|
| Type | Description | 
Attachment | 
        |
buildPartial()
public Attachment buildPartial()| Returns | |
|---|---|
| Type | Description | 
Attachment | 
        |
clear()
public Attachment.Builder clear()| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
clearAttachmentDataRef()
public Attachment.Builder clearAttachmentDataRef()Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
clearContentName()
public Attachment.Builder clearContentName()Output only. The original file name for the content, not the full path.
 string content_name = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
clearContentType()
public Attachment.Builder clearContentType()Output only. The content type (MIME type) of the file.
 string content_type = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
clearDataRef()
public Attachment.Builder clearDataRef()| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
clearDownloadUri()
public Attachment.Builder clearDownloadUri()Output only. The download URL which should be used to allow a human user to download the attachment. Chat apps shouldn't use this URL to download attachment content.
 string download_uri = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
clearDriveDataRef()
public Attachment.Builder clearDriveDataRef()Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
clearField(Descriptors.FieldDescriptor field)
public Attachment.Builder clearField(Descriptors.FieldDescriptor field)| Parameter | |
|---|---|
| Name | Description | 
field | 
        FieldDescriptor | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
clearName()
public Attachment.Builder clearName() Optional. Resource name of the attachment, in the form
 spaces/{space}/messages/{message}/attachments/{attachment}.
 string name = 1 [(.google.api.field_behavior) = OPTIONAL];
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
clearOneof(Descriptors.OneofDescriptor oneof)
public Attachment.Builder clearOneof(Descriptors.OneofDescriptor oneof)| Parameter | |
|---|---|
| Name | Description | 
oneof | 
        OneofDescriptor | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
clearSource()
public Attachment.Builder clearSource()Output only. The source of the attachment.
 
 .google.chat.v1.Attachment.Source source = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
clearThumbnailUri()
public Attachment.Builder clearThumbnailUri()Output only. The thumbnail URL which should be used to preview the attachment to a human user. Chat apps shouldn't use this URL to download attachment content.
 string thumbnail_uri = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
clone()
public Attachment.Builder clone()| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
getAttachmentDataRef()
public AttachmentDataRef getAttachmentDataRef()Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Returns | |
|---|---|
| Type | Description | 
AttachmentDataRef | 
        The attachmentDataRef.  | 
      
getAttachmentDataRefBuilder()
public AttachmentDataRef.Builder getAttachmentDataRefBuilder()Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Returns | |
|---|---|
| Type | Description | 
AttachmentDataRef.Builder | 
        |
getAttachmentDataRefOrBuilder()
public AttachmentDataRefOrBuilder getAttachmentDataRefOrBuilder()Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Returns | |
|---|---|
| Type | Description | 
AttachmentDataRefOrBuilder | 
        |
getContentName()
public String getContentName()Output only. The original file name for the content, not the full path.
 string content_name = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
String | 
        The contentName.  | 
      
getContentNameBytes()
public ByteString getContentNameBytes()Output only. The original file name for the content, not the full path.
 string content_name = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
ByteString | 
        The bytes for contentName.  | 
      
getContentType()
public String getContentType()Output only. The content type (MIME type) of the file.
 string content_type = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
String | 
        The contentType.  | 
      
getContentTypeBytes()
public ByteString getContentTypeBytes()Output only. The content type (MIME type) of the file.
 string content_type = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
ByteString | 
        The bytes for contentType.  | 
      
getDataRefCase()
public Attachment.DataRefCase getDataRefCase()| Returns | |
|---|---|
| Type | Description | 
Attachment.DataRefCase | 
        |
getDefaultInstanceForType()
public Attachment getDefaultInstanceForType()| Returns | |
|---|---|
| Type | Description | 
Attachment | 
        |
getDescriptorForType()
public Descriptors.Descriptor getDescriptorForType()| Returns | |
|---|---|
| Type | Description | 
Descriptor | 
        |
getDownloadUri()
public String getDownloadUri()Output only. The download URL which should be used to allow a human user to download the attachment. Chat apps shouldn't use this URL to download attachment content.
 string download_uri = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
String | 
        The downloadUri.  | 
      
getDownloadUriBytes()
public ByteString getDownloadUriBytes()Output only. The download URL which should be used to allow a human user to download the attachment. Chat apps shouldn't use this URL to download attachment content.
 string download_uri = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
ByteString | 
        The bytes for downloadUri.  | 
      
getDriveDataRef()
public DriveDataRef getDriveDataRef()Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
DriveDataRef | 
        The driveDataRef.  | 
      
getDriveDataRefBuilder()
public DriveDataRef.Builder getDriveDataRefBuilder()Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
DriveDataRef.Builder | 
        |
getDriveDataRefOrBuilder()
public DriveDataRefOrBuilder getDriveDataRefOrBuilder()Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
DriveDataRefOrBuilder | 
        |
getName()
public String getName() Optional. Resource name of the attachment, in the form
 spaces/{space}/messages/{message}/attachments/{attachment}.
 string name = 1 [(.google.api.field_behavior) = OPTIONAL];
| Returns | |
|---|---|
| Type | Description | 
String | 
        The name.  | 
      
getNameBytes()
public ByteString getNameBytes() Optional. Resource name of the attachment, in the form
 spaces/{space}/messages/{message}/attachments/{attachment}.
 string name = 1 [(.google.api.field_behavior) = OPTIONAL];
| Returns | |
|---|---|
| Type | Description | 
ByteString | 
        The bytes for name.  | 
      
getSource()
public Attachment.Source getSource()Output only. The source of the attachment.
 
 .google.chat.v1.Attachment.Source source = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
Attachment.Source | 
        The source.  | 
      
getSourceValue()
public int getSourceValue()Output only. The source of the attachment.
 
 .google.chat.v1.Attachment.Source source = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
int | 
        The enum numeric value on the wire for source.  | 
      
getThumbnailUri()
public String getThumbnailUri()Output only. The thumbnail URL which should be used to preview the attachment to a human user. Chat apps shouldn't use this URL to download attachment content.
 string thumbnail_uri = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
String | 
        The thumbnailUri.  | 
      
getThumbnailUriBytes()
public ByteString getThumbnailUriBytes()Output only. The thumbnail URL which should be used to preview the attachment to a human user. Chat apps shouldn't use this URL to download attachment content.
 string thumbnail_uri = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Returns | |
|---|---|
| Type | Description | 
ByteString | 
        The bytes for thumbnailUri.  | 
      
hasAttachmentDataRef()
public boolean hasAttachmentDataRef()Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Returns | |
|---|---|
| Type | Description | 
boolean | 
        Whether the attachmentDataRef field is set.  | 
      
hasDriveDataRef()
public boolean hasDriveDataRef()Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Returns | |
|---|---|
| Type | Description | 
boolean | 
        Whether the driveDataRef field is set.  | 
      
internalGetFieldAccessorTable()
protected GeneratedMessageV3.FieldAccessorTable internalGetFieldAccessorTable()| Returns | |
|---|---|
| Type | Description | 
FieldAccessorTable | 
        |
isInitialized()
public final boolean isInitialized()| Returns | |
|---|---|
| Type | Description | 
boolean | 
        |
mergeAttachmentDataRef(AttachmentDataRef value)
public Attachment.Builder mergeAttachmentDataRef(AttachmentDataRef value)Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Parameter | |
|---|---|
| Name | Description | 
value | 
        AttachmentDataRef | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
mergeDriveDataRef(DriveDataRef value)
public Attachment.Builder mergeDriveDataRef(DriveDataRef value)Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Parameter | |
|---|---|
| Name | Description | 
value | 
        DriveDataRef | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
mergeFrom(Attachment other)
public Attachment.Builder mergeFrom(Attachment other)| Parameter | |
|---|---|
| Name | Description | 
other | 
        Attachment | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
mergeFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)
public Attachment.Builder mergeFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry)| Parameters | |
|---|---|
| Name | Description | 
input | 
        CodedInputStream | 
      
extensionRegistry | 
        ExtensionRegistryLite | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
| Exceptions | |
|---|---|
| Type | Description | 
IOException | 
        |
mergeFrom(Message other)
public Attachment.Builder mergeFrom(Message other)| Parameter | |
|---|---|
| Name | Description | 
other | 
        Message | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
mergeUnknownFields(UnknownFieldSet unknownFields)
public final Attachment.Builder mergeUnknownFields(UnknownFieldSet unknownFields)| Parameter | |
|---|---|
| Name | Description | 
unknownFields | 
        UnknownFieldSet | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setAttachmentDataRef(AttachmentDataRef value)
public Attachment.Builder setAttachmentDataRef(AttachmentDataRef value)Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Parameter | |
|---|---|
| Name | Description | 
value | 
        AttachmentDataRef | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setAttachmentDataRef(AttachmentDataRef.Builder builderForValue)
public Attachment.Builder setAttachmentDataRef(AttachmentDataRef.Builder builderForValue)Optional. A reference to the attachment data. This field is used to create or update messages with attachments, or with the media API to download the attachment data.
 
 .google.chat.v1.AttachmentDataRef attachment_data_ref = 4 [(.google.api.field_behavior) = OPTIONAL];
 
| Parameter | |
|---|---|
| Name | Description | 
builderForValue | 
        AttachmentDataRef.Builder | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setContentName(String value)
public Attachment.Builder setContentName(String value)Output only. The original file name for the content, not the full path.
 string content_name = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        StringThe contentName to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setContentNameBytes(ByteString value)
public Attachment.Builder setContentNameBytes(ByteString value)Output only. The original file name for the content, not the full path.
 string content_name = 2 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        ByteStringThe bytes for contentName to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setContentType(String value)
public Attachment.Builder setContentType(String value)Output only. The content type (MIME type) of the file.
 string content_type = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        StringThe contentType to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setContentTypeBytes(ByteString value)
public Attachment.Builder setContentTypeBytes(ByteString value)Output only. The content type (MIME type) of the file.
 string content_type = 3 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        ByteStringThe bytes for contentType to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setDownloadUri(String value)
public Attachment.Builder setDownloadUri(String value)Output only. The download URL which should be used to allow a human user to download the attachment. Chat apps shouldn't use this URL to download attachment content.
 string download_uri = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        StringThe downloadUri to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setDownloadUriBytes(ByteString value)
public Attachment.Builder setDownloadUriBytes(ByteString value)Output only. The download URL which should be used to allow a human user to download the attachment. Chat apps shouldn't use this URL to download attachment content.
 string download_uri = 6 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        ByteStringThe bytes for downloadUri to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setDriveDataRef(DriveDataRef value)
public Attachment.Builder setDriveDataRef(DriveDataRef value)Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Parameter | |
|---|---|
| Name | Description | 
value | 
        DriveDataRef | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setDriveDataRef(DriveDataRef.Builder builderForValue)
public Attachment.Builder setDriveDataRef(DriveDataRef.Builder builderForValue)Output only. A reference to the Google Drive attachment. This field is used with the Google Drive API.
 
 .google.chat.v1.DriveDataRef drive_data_ref = 7 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Parameter | |
|---|---|
| Name | Description | 
builderForValue | 
        DriveDataRef.Builder | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setField(Descriptors.FieldDescriptor field, Object value)
public Attachment.Builder setField(Descriptors.FieldDescriptor field, Object value)| Parameters | |
|---|---|
| Name | Description | 
field | 
        FieldDescriptor | 
      
value | 
        Object | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setName(String value)
public Attachment.Builder setName(String value) Optional. Resource name of the attachment, in the form
 spaces/{space}/messages/{message}/attachments/{attachment}.
 string name = 1 [(.google.api.field_behavior) = OPTIONAL];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        StringThe name to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setNameBytes(ByteString value)
public Attachment.Builder setNameBytes(ByteString value) Optional. Resource name of the attachment, in the form
 spaces/{space}/messages/{message}/attachments/{attachment}.
 string name = 1 [(.google.api.field_behavior) = OPTIONAL];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        ByteStringThe bytes for name to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setRepeatedField(Descriptors.FieldDescriptor field, int index, Object value)
public Attachment.Builder setRepeatedField(Descriptors.FieldDescriptor field, int index, Object value)| Parameters | |
|---|---|
| Name | Description | 
field | 
        FieldDescriptor | 
      
index | 
        int | 
      
value | 
        Object | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |
setSource(Attachment.Source value)
public Attachment.Builder setSource(Attachment.Source value)Output only. The source of the attachment.
 
 .google.chat.v1.Attachment.Source source = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Parameter | |
|---|---|
| Name | Description | 
value | 
        Attachment.SourceThe source to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setSourceValue(int value)
public Attachment.Builder setSourceValue(int value)Output only. The source of the attachment.
 
 .google.chat.v1.Attachment.Source source = 9 [(.google.api.field_behavior) = OUTPUT_ONLY];
 
| Parameter | |
|---|---|
| Name | Description | 
value | 
        intThe enum numeric value on the wire for source to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setThumbnailUri(String value)
public Attachment.Builder setThumbnailUri(String value)Output only. The thumbnail URL which should be used to preview the attachment to a human user. Chat apps shouldn't use this URL to download attachment content.
 string thumbnail_uri = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        StringThe thumbnailUri to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setThumbnailUriBytes(ByteString value)
public Attachment.Builder setThumbnailUriBytes(ByteString value)Output only. The thumbnail URL which should be used to preview the attachment to a human user. Chat apps shouldn't use this URL to download attachment content.
 string thumbnail_uri = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
| Parameter | |
|---|---|
| Name | Description | 
value | 
        ByteStringThe bytes for thumbnailUri to set.  | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        This builder for chaining.  | 
      
setUnknownFields(UnknownFieldSet unknownFields)
public final Attachment.Builder setUnknownFields(UnknownFieldSet unknownFields)| Parameter | |
|---|---|
| Name | Description | 
unknownFields | 
        UnknownFieldSet | 
      
| Returns | |
|---|---|
| Type | Description | 
Attachment.Builder | 
        |