How to use the node-object-hash.hash function in node-object-hash

configHash: function(webpackConfig) {
                // Build a string value used by HardSource to determine which cache to
                // use if [confighash] is in cacheDirectory or if the cache should be
                // replaced if [confighash] does not appear in cacheDirectory.
                //
                // node-object-hash on npm can be used to build this.
                return require('node-object-hash')({ sort: false }).hash(
                    webpackConfig
                );
            },
            // This field determines when to throw away the whole cache if for

configHash: function(webpackConfig) {
			// node-object-hash on npm can be used to build this.
			return require('node-object-hash')({ sort: false }).hash(
				webpackConfig
			);
		},
		// Clean up large, old caches automatically.

configHash: function(webpackConfig) {
        return require('node-object-hash')().hash(webpackConfig);
      }
    })

configHash: (webpackConfig) => (
            require('node-object-hash')({
                sort: false
            }).hash(webpackConfig)
        ),
        environmentHash: {