docs: function(node) {
      // Make sure that this is a call expression
      if (!node || node.type !== 'CallExpression' ) {
        return;
      }
      // Get the callee property
      var property;
      if (node.callee && node.callee.property) {
        property = node.callee.property;
      }
      // Return the identifier name of the callee
      if (property && property.type === 'Identifier') {
        return property.name;
      }
    }