def glVertex(x, y, z, w, v: 'Buffer'):
    """Specify a vertex 

    :param w: Specify x, y, z, and w coordinates of a vertex. Not all parameters are present in all forms of the command. 
    :param v: Specifies a pointer to an array of two, three, or four elements. The elements of a two-element array are x and y; of a three-element array, x, y, and z; and of a four-element array, x, y, z, and w. 
    :type v: 'Buffer'
    """
    pass
