public ComputeNodeUpdateUserHeaders withLastModified(DateTime lastModified) {
        if (lastModified == null) {
            this.lastModified = null;
        } else {
            this.lastModified = new DateTimeRfc1123(lastModified);
        }
        return this;
    }
public ComputeNodeUpdateUserHeaders withLastModified ( DateTime lastModified ) { if ( lastModified == null ) { this . lastModified = null ; } else { this . lastModified = new DateTimeRfc1123 ( lastModified ) ; } return this ; }
Set the time at which the resource was last modified.

@param lastModified the lastModified value to set
@return the ComputeNodeUpdateUserHeaders object itself.