I'm trying to calculate a serial number and having trouble. I'm unsure
of the jinja filter pipeline. Here's what I'm trying:

serial: "{{play_hosts|length|float/2|round(0, 'ceil')|int}}"

here's the error:

ValueError: invalid literal for int() with base 10:
"{{default(length(play_hosts), 1)/2|round(0, 'ceil')|int}}"

If I put that jinja string in a debug, it is ending with a float- for
instance, if there are 10 play_hosts, the output is 5.0. That seems
strange given the 'int'. I wonder if that's what is causing it to
fail.

-ted

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