How to properly resolve a PyCallExpression Follow

class Vector2(object):

    def __init__(self, x, y):
        self.x = x
        self.y = y

    def method(self):
        print("hello function!")


vector2 = Vector2(-1, -2)
vector2.method()

Considering this simple snippet when trying to resolve the PyCallExpression "method" like this: (in PyRecursiveElementVisitor.visitPyCallExpression(PyCallExpression node))

List<PyCallableType> callableTypes = node.multiResolveCallee(PyResolveContext.defaultContext());

I get an empty list, but when I use: (in PyRecursiveElementVisitor.visitPyCallExpression(PyCallExpression node))

List<PyCallableType> callableTypes = node.multiResolveCallee(PyResolveContext.implicitContext());

I get a list of multiple elements (11 occurences, one of them is the actual result).

How to tell which element is the most accurate one giving this simple case with explicit usage.

How actually IntelliJ handles Go To Declaration? Because it automatically jumps to the declaration when it is trivial (no errors, and access is explicit without getattr or setattr).

Thanks.