Export isNode, isRelationship, isPath, isPathSegment and isUnboundedRelationship function (neo4j#1040)

This functions were not exposed before.
Exposing these functions give more power to the user introspect the values in the records.

Example:
```typescript 
import neo4j from 'neo4j-driver'

neo4j.isNode({}) // should return false
neo4j.graph.isNode({}) // should return false
```

Author: bigmontz

packages/neo4j-driver-deno/lib/mod.ts

@@ -40,7 +40,12 @@ import {
   isDuration,
   isLocalDateTime,
   isLocalTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
   isTime,
+  isUnboundRelationship,
   LocalDateTime,
   LocalTime,
   Time,
@@ -413,6 +418,17 @@ const temporal = {
   isDateTime
 }
 
+/**
+ * Object containing functions to work with graph types, like {@link Node} or {@link Relationship}.
+ */
+const graph = {
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship
+}
+
 /**
  * @private
  */
@@ -428,6 +444,11 @@ const forExport = {
   isDate,
   isLocalDateTime,
   isDateTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship,
   integer,
   Neo4jError,
   isRetriableError,
@@ -436,6 +457,7 @@ const forExport = {
   types,
   session,
   error,
+  graph,
   spatial,
   temporal,
   Driver,
@@ -481,6 +503,11 @@ export {
   isDate,
   isLocalDateTime,
   isDateTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship,
   integer,
   Neo4jError,
   isRetriableError,
@@ -489,6 +516,7 @@ export {
   types,
   session,
   error,
+  graph,
   spatial,
   temporal,
   Driver,

packages/neo4j-driver-lite/src/index.ts

@@ -40,7 +40,12 @@ import {
   isDuration,
   isLocalDateTime,
   isLocalTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
   isTime,
+  isUnboundRelationship,
   LocalDateTime,
   LocalTime,
   Time,
@@ -428,6 +433,17 @@ const temporal = {
   isDateTime
 }
 
+/**
+ * Object containing functions to work with graph types, like {@link Node} or {@link Relationship}.
+ */
+const graph = {
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship
+}
+
 /**
  * @private
  */
@@ -443,6 +459,11 @@ const forExport = {
   isDate,
   isLocalDateTime,
   isDateTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship,
   integer,
   Neo4jError,
   isRetriableError,
@@ -451,6 +472,7 @@ const forExport = {
   types,
   session,
   error,
+  graph,
   spatial,
   temporal,
   Driver,
@@ -496,6 +518,11 @@ export {
   isDate,
   isLocalDateTime,
   isDateTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship,
   integer,
   Neo4jError,
   isRetriableError,
@@ -504,6 +531,7 @@ export {
   types,
   session,
   error,
+  graph,
   spatial,
   temporal,
   Driver,

packages/neo4j-driver-lite/test/unit/index.test.ts

@@ -50,7 +50,13 @@ import neo4j, {
   Date,
   LocalDateTime,
   DateTime,
-  BookmarkManager
+  BookmarkManager,
+  graph,
+  isNode,
+  isRelationship,
+  isPath,
+  isPathSegment,
+  isUnboundRelationship
 } from '../../'
 
 describe('index', () => {
@@ -301,4 +307,100 @@ describe('index', () => {
     const date: DateTime<number> = new DateTime(1, 2, 3, 3, 5, 6, 6, 5)
     expect(date).toBeDefined()
   })
+
+  it('should export isNode', () => {
+    const node = new Node(int(123), ['abc'], [1])
+
+    expect(isNode(node)).toBe(true)
+  })
+
+  it('should export graph.isNode', () => {
+    const node = new Node(int(123), ['abc'], [1])
+
+    expect(graph.isNode(node)).toBe(true)
+  })
+
+  it('should export isRelationship', () => {
+    const rel = new Relationship(
+      int(123),
+      int(1),
+      int(1),
+      'rel',
+      {}
+    )
+
+    expect(isRelationship(rel)).toBe(true)
+  })
+
+  it('should export graph.isRelationship', () => {
+    const rel = new Relationship(
+      int(123),
+      int(1),
+      int(1),
+      'rel',
+      {}
+    )
+
+    expect(graph.isRelationship(rel)).toBe(true)
+  })
+
+  it('should export isUnboundRelationship', () => {
+    const rel = new UnboundRelationship(
+      int(123),
+      'rel',
+      {}
+    )
+
+    expect(isUnboundRelationship(rel)).toBe(true)
+  })
+
+  it('should export graph.isUnboundRelationship', () => {
+    const rel = new UnboundRelationship(
+      int(123),
+      'rel',
+      {}
+    )
+
+    expect(graph.isUnboundRelationship(rel)).toBe(true)
+  })
+
+  it('should export isPath', () => {
+    const path = new Path(
+      new Node(int(1), ['a'], ['1']),
+      new Node(int(1), ['a'], ['1']),
+      []
+    )
+
+    expect(isPath(path)).toBe(true)
+  })
+
+  it('should export graph.isPath', () => {
+    const path = new Path(
+      new Node(int(1), ['a'], ['1']),
+      new Node(int(1), ['a'], ['1']),
+      []
+    )
+
+    expect(graph.isPath(path)).toBe(true)
+  })
+
+  it('should export isPathSegment', () => {
+    const pathSeg = new PathSegment(
+      new Node(int(1), ['a'], ['1']),
+      new Relationship(int(123), int(1), int(1), 'rel', {}),
+      new Node(int(1), ['a'], ['1'])
+    )
+
+    expect(isPathSegment(pathSeg)).toBe(true)
+  })
+
+  it('should export graph.isPath', () => {
+    const pathSeg = new PathSegment(
+      new Node(int(1), ['a'], ['1']),
+      new Relationship(int(123), int(1), int(1), 'rel', {}),
+      new Node(int(1), ['a'], ['1'])
+    )
+
+    expect(graph.isPathSegment(pathSeg)).toBe(true)
+  })
 })

packages/neo4j-driver/src/index.js

@@ -40,7 +40,12 @@ import {
   isDuration,
   isLocalDateTime,
   isLocalTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
   isTime,
+  isUnboundRelationship,
   LocalDateTime,
   LocalTime,
   Time,
@@ -401,6 +406,17 @@ const temporal = {
   isDateTime
 }
 
+/**
+ * Object containing functions to work with graph types, like {@link Node} or {@link Relationship}.
+ */
+const graph = {
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship
+}
+
 /**
  * @private
  */
@@ -416,6 +432,11 @@ const forExport = {
   isDate,
   isLocalDateTime,
   isDateTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship,
   integer,
   Neo4jError,
   isRetryableError,
@@ -424,6 +445,7 @@ const forExport = {
   types,
   session,
   error,
+  graph,
   spatial,
   temporal,
   Driver,
@@ -470,6 +492,11 @@ export {
   isDate,
   isLocalDateTime,
   isDateTime,
+  isNode,
+  isPath,
+  isPathSegment,
+  isRelationship,
+  isUnboundRelationship,
   integer,
   Neo4jError,
   isRetryableError,
@@ -478,6 +505,7 @@ export {
   types,
   session,
   error,
+  graph,
   spatial,
   temporal,
   Driver,