str_trim_anything("..abcd.", ".", "left")
str_trim_anything("..abcd.", coll("."), "left")
str_trim_anything("-ghi--", "-", "both")
str_trim_anything("-ghi--", "-")
str_trim_anything("-ghi--", "-", "right")
str_trim_anything("-ghi--", "--")
str_trim_anything("-ghi--", "i-+")
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