CORE_FILE_MANAGE CORE Endpoint
  /rpc/core/?method=CORE_FILE_MANAGE  
  Create a text file.  
  PARAMETERS TYPE NOTES
  Bucket Numeric An Amazon S3 bucket as configured via SETUP_AWS_S3_BUCKET_MANAGE
  BucketFileName Text (1000) Defaults to [object title]/[object id]/[filename].
  FileData Text  
  FileName Text Creates unique file name, if not set.
  Object Numeric Uses temp object (176), if not set.
  ObjectContext Numeric Users temp object context, if not set.
  RETURN  
  attachmentlink Numeric
  link Text