human
Complete the below
def _find_splitting_points(expr, x):

    ''''Find numbers a such that a linear substitution x -> x + a would
    (hopefully) simplify expr.
    >>> from sympy.integrals.meijerint import _find_splitting_points as fsp
    >>> from sympy import sin
    >>> from sympy.abc import a, x
    >>> fsp(x, x)
    {0}
    >>> fsp((x-1)**3, x)
    {1}
    >>> fsp(sin(x+3)*x, x)
    {-3, 0}'
    '''
assistant
#Here is Python program to find numbers a such that a linear substitution x -> x + a would
.
    (p, q) = [Wild(n, exclude=[x]) for n in 'pq']
    def compute_innermost(expr, res):
        if (not isinstance(expr, Expr)):
            return
        m = expr.match(((p * x) + q))
        if (m and (m[p] != 0)):
            res.add(((- m[q]) / m[p]))
            return
        if expr.is_Atom:
            return
        for arg in expr.args:
            compute_innermost(arg, res)
    innermost = set()
    compute_innermost(expr, innermost)
    return innermost