detect(node) {
    if (node.type !== 'VariableDeclaration') {
      return;
    }

    const declaration = find(dec => this.isRequireUtil(dec), node.declarations);
    if (declaration) {
      return {
        type: 'MemberExpression',
        computed: false,
        object: {
          type: 'Identifier',
          name: declaration.id.name,
        },
        property: {
          type: 'Identifier',
          name: 'inherits'
        }
      };
    }
  }
Detects: var <identifier> = require("util")

@param {Object} node
@return {Object} MemberExpression of <identifier>.inherits