code: def run(self):
      if "fbcode" not in os.getcwd():
          return []
      node = nodes.section()
      node.document = self.state.document
      nested_parse_with_titles(self.state, self.content, node)
      return node.children
  
imports: import os
  from docutils import nodes
  from sphinx.util.docutils import SphinxDirective
  from sphinx.util.nodes import nested_parse_with_titles
label_desc: Use image node_id 1 for calling the FbcodeDirective obj's underlying member method code with example usage: obj.run() and returns: node, list