import math


def get_angle(var_x1, var_y1, var_x2, var_y2):
    """
    Get the angle between two points defined by
    (var_x1, var_y1) and (var_x2, var_y2)

    Arguments:
        var_x1 {float} -- X-value for the first point
        var_y1 {float} -- Y-value for the first point
        var_x2 {float} -- X-value for the second point
        var_y2 {float} -- Y-value for the second point

    Returns:
        float -- angle in radians
    """
    x_diff = var_x2 - var_x1
    y_diff = var_y2 - var_y1
    return math.atan2(y_diff, x_diff)
    # return math.degrees(math.atan2(1,1))