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Rooted by: Pavlj's Kumite #2
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  • Code 
    def spawn_to_range(a, v, r): return a[:(i := a.index(v))] + [v] * r + a[i + 1:]
     Test Cases 
    import codewars_test as test
# TODO Write tests
import solution # or from solution import example

# test.assert_equals(actual, expected, [optional] message)
@test.describe("Example")
def test_group():
    @test.it("test case")
    def test_case():
        test.assert_equals(spawn_to_range([0, 10, 20, 13], 13, 4), [0, 10, 20, 13, 13, 13, 13])
        test.assert_equals(spawn_to_range([0, 10, 12, 14], 10, 3), [0, 10, 10, 10, 12, 14])
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  • Code
    • def spawn_to_range(a, v, r): i = a.index(v); return a[:i] + [v] * r + a[i + 1:]
    • def spawn_to_range(a, v, r): return a[:(i := a.index(v))] + [v] * r + a[i + 1:]