Types.CreateAttachmentInput

Represents input for creating attachments using Create Attachments function. Following contuctors are supported -

CreateAttachmentInput(
  String resourceId,
  String resourceType,
  String parentId,
  String driveId
)

1. resourceId - Id of the file/folder in external storage, for which we're creating the attachment
2. resourceType - One of file or folder
3. parentId - Salesforce Id of the record for which we're creating the attachment
4. driveId - Only applicable for SharePoint or Google Drive libraries. Supply null for other libraries. You can get this value from Content Library