getCaller() public method

public getCaller ( )
 public function testCanCreateANewInstanceWithArguments()
 {
     $caller = new InstantiatedReference('user.factory');
     $method = 'setUsername';
     $arguments = [new \stdClass()];
     $definition = new MethodCallWithReference($caller, $method, $arguments);
     $newArguments = [$arg0 = new \stdClass()];
     $newDefinition = $definition->withArguments($newArguments);
     // Mutate argument before reading it
     $arg0->foo = 'bar';
     $this->assertInstanceOf(MethodCallWithReference::class, $newDefinition);
     $this->assertEquals($caller, $definition->getCaller());
     $this->assertEquals($method, $definition->getMethod());
     $this->assertEquals($arguments, $definition->getArguments());
     $this->assertEquals($caller, $newDefinition->getCaller());
     $this->assertEquals($method, $newDefinition->getMethod());
     $this->assertEquals([StdClassFactory::create(['foo' => 'bar'])], $newDefinition->getArguments());
 }