question: gets the size of this object in bytes . concode_field_sep Owner owner concode_elem_sep String bucketName concode_elem_sep String storageClass concode_elem_sep long size concode_elem_sep String eTag concode_elem_sep Date lastModified concode_elem_sep String key concode_field_sep String getKey concode_elem_sep Date getLastModified concode_elem_sep Owner getOwner concode_elem_sep void setBucketName concode_elem_sep void setOwner concode_elem_sep String getStorageClass concode_elem_sep void setSize concode_elem_sep void setStorageClass concode_elem_sep String getETag concode_elem_sep void setETag concode_elem_sep void setLastModified concode_elem_sep String getBucketName concode_elem_sep void setKey
target: long function ( ) { return size ; }