feat: Support bundling Python docstrings on attributes #589

class MyClass:
    """
    Documentation of the class
    """

    attribute = None
    """
    Documentation of the attribute
    """

    def method(self):
         """
         Documentation of the method
         """
         return True

In Python, documentation comments are generally added as "docstrings": ```python class MyClass: """ Documentation of the class """ attribute = None """ Documentation of the attribute """ def method(self): """ Documentation of the method """ return True ``` Those "comments" are actual string literals that get pulled in as `__doc__` attributes by Python. Because those string literals aren't marked as `extra` by the tree-sitter grammar, the bundling algorithm does not apply to them. In particular, doc strings for class attributes aren't bundled. This is less of a problem for doc strings for classes or methods, since they already appear in the bloc that defines them, so there is no need for any bundling. To get the doc strings to be bundled with the attributes, I can imagine multiple approaches: * extend the LangProfile to contain a list of node types (or tree-sitter query) defining additional nodes to be treated as bundle-able * change the Python grammar to do this bundling directly. There seems to be interest in adding special handling for docstrings from other grammar users: * https://github.com/tree-sitter/tree-sitter-python/issues/168 * https://github.com/tree-sitter/tree-sitter-python/issues/80 * https://github.com/tree-sitter/tree-sitter-python/issues/77 * https://github.com/tree-sitter/tree-sitter-python/issues/197 * https://github.com/tree-sitter/tree-sitter-python/issues/251