**EXPERIMENTAL** - *The current implementation only works properly
        with rectangular shapes, such as pictures and rectangles. Use with
        other shape types may cause unexpected visual alignment of the
        connected end-point and could lead to a load error if cxn_pt_idx
        exceeds the connection point count available on the connected shape.
        That said, a quick test should reveal what to expect when using this
        method with other shape types.*

        Connect the beginning of this connector to *shape* at the connection
        point specified by *cxn_pt_idx*. Each shape has zero or more
        connection points and they are identified by index, starting with 0.
        Generally, the first connection point of a shape is at the top center
        of its bounding box and numbering proceeds counter-clockwise from
        there. However this is only a convention and may vary, especially
        with non built-in shapes.

def begin_connect(self, shape, cxn_pt_idx):
        """
        **EXPERIMENTAL** - *The current implementation only works properly
        with rectangular shapes, such as pictures and rectangles. Use with
        other shape types may cause unexpected visual alignment of the
        connected end-point and could lead to a load error if cxn_pt_idx
        exceeds the connection point count available on the connected shape.
        That said, a quick test should reveal what to expect when using this
        method with other shape types.*

        Connect the beginning of this connector to *shape* at the connection
        point specified by *cxn_pt_idx*. Each shape has zero or more
        connection points and they are identified by index, starting with 0.
        Generally, the first connection point of a shape is at the top center
        of its bounding box and numbering proceeds counter-clockwise from
        there. However this is only a convention and may vary, especially
        with non built-in shapes.
        """
        self._connect_begin_to(shape, cxn_pt_idx)
        self._move_begin_to_cxn(shape, cxn_pt_idx)