code: function extractImportedVariables(context) {
    if (!context.importedVariables) {
      return {};
    }
    const importedVariables = {};
    Object.entries(context.importedVariables).forEach(([src, variables]) => {
      variables.forEach((variableName) => {
        const actualFilePath = utils.isUrl()
          ? src
          : path.resolve(path.dirname(context.cwf), decodeURIComponent(url.parse(src).path));
        if (!VARIABLE_LOOKUP[actualFilePath] || !VARIABLE_LOOKUP[actualFilePath][variableName]) {
          // eslint-disable-next-line no-console
          console.warn(`Missing variable ${variableName} in ${src} referenced by ${context.cwf}\n`);
          return;
        }
        const variableValue = VARIABLE_LOOKUP[actualFilePath][variableName];
        if (!importedVariables[variableName]) {
          importedVariables[variableName] = variableValue;
        }
      });
    });
    return importedVariables;
  }
docs: Extract imported page variables from a page
  @param context of the page