///blockFromTemplate(template)
/**
 * blockFromTemplate :: BlockTemplate -> Instance
 * 
 * Creates a block from the given template.
 *
 * @param template the block tempalte to use
 * @returns the id of the block instance
 */

var template = argument0;

assertInstanceof(template, BlockTemplate);

var block = createBlock(template.inputs, template.outputs);
block.template = template;

return block;