refactor: change internals to pathParts function

src/del.js

@@ -2,7 +2,7 @@
 import is from './is';
 import empty from './empty';
 import clone from './clone';
-import { getPathParts } from './internals';
+import getPathParts from './pathParts';
 
 /**
  * Delete the specified path from the object

src/get.js

@@ -2,7 +2,7 @@
 import is from './is';
 import empty from './empty';
 import has from './has';
-import { getPathParts } from './internals';
+import getPathParts from './pathParts';
 
 /**
  * Get the value from the specified path

src/has.js

@@ -1,7 +1,7 @@
 // o
 import is from './is';
 import empty from './empty';
-import { getPathParts } from './internals';
+import getPathParts from './pathParts';
 
 /**
  * Check if an object has the specified paths

src/internals.js → src/pathParts.js

@@ -51,6 +51,4 @@ function getPathParts(path) {
   return parts;
 }
 
-export {
-  getPathParts,
-};
+export default getPathParts;

src/set.js

@@ -1,7 +1,7 @@
 // o
 import is from './is';
 import clone from './clone';
-import { getPathParts } from './internals';
+import getPathParts from './pathParts';
 
 /**
  * Set the specified path with the specified value