Function that returns the specified tangent relationship using a name.
"tangentRelationships_var" is a variable referencing a TangentRelationships object. | 
        
"tangentRelationships_var" is a variable referencing a TangentRelationships object. | 
        
| Type | Description | 
| TangentRelationship | Returns the specified item or null if an invalid name was specified. | 
| Name | Type | Description | 
| name | string | The name of the item within the collection to return. |