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**********
Args:
    arg1 (int, default 10): First argument with space-separated default.
    arg2 (str, default "hello"): Second argument with comma-separated default.
    arg3 (bool, default is True): Third argument with "default is" format.
    arg4 (float, default: 3.14): Fourth argument with colon-based default.
    arg5 (list[int], default:[]): Fifth argument with colon and no space.
    arg6 (dict[str, int], default  :   {}): Sixth argument with irregular spacing around colon.
    arg7 (str, default is "world"): Seventh argument with "default is" and no comma.
    arg8 (int, default=42): Eighth argument already in correct format.

**********

Args:
    arg1 (int, default=10): First argument with space-separated default.
    arg2 (str, default="hello"): Second argument with comma-separated default.
    arg3 (bool, default=True): Third argument with "default is" format.
    arg4 (float, default=3.14): Fourth argument with colon-based default.
    arg5 (list[int], default=[]): Fifth argument with colon and no space.
    arg6 (dict[str, int], default={}): Sixth argument with irregular spacing
        around colon.
    arg7 (str, default="world"): Seventh argument with "default is" and no
        comma.
    arg8 (int, default=42): Eighth argument already in correct format.
