129   const codeBlock = findObjcInterfaceCodeBlock(srcContents, declaration);  constant
130   if (!codeBlock) {
136     const firstNewLineIndex = srcContents.indexOf('\n', codeBlock.start);
140     srcContents = insertContentsAtOffset(srcContents, insertion, codeBlock.end - endLen);
186     const codeBlock = contents.substring(codeBlockStart, codeBlockEnd + 1);  constant
190       code: codeBlock,
266   const codeBlock =  constant
270   if (!codeBlock) {
281       codeBlock.start + 1
284     srcContents = insertContentsAtOffset(srcContents, `\n${indent}${insertion}`, codeBlock.end - 1);
286     let lastReturnIndex = srcContents.lastIndexOf(' return ', codeBlock.end);