process.Run 'int' object is not subscriptable

In e3.os.process.Run, the parameter input can by of type PIPE_VALUE => -2

    def __init__(
        self,
        cmds: AnyCmdLine,
        cwd: str | None = None,
        output: STDOUT_VALUE | DEVNULL_VALUE | PIPE_VALUE | str | IO | None = PIPE,
        error: STDOUT_VALUE | DEVNULL_VALUE | PIPE_VALUE | str | IO | None = STDOUT,
        input: DEVNULL_VALUE  # noqa: A002
+       | PIPE_VALUE
        | str
        | bytes
        | IO
        | None = None,  # noqa: A002

Then we have:

        # First resolve output, error and input
+       self.input_file = File(input, "r")
        self.output_file = File(output, "w")

Then in File:

    def __init__(self, name: Any, mode: str = "r"):
+       self.name = name

        if isinstance(name, bytes) and mode == "r" and name.startswith(b"|"):
            self.fd = subprocess.PIPE
        elif isinstance(name, str):
            ...
        else:
            # this is a file descriptor
+           self.fd = name
        ...
        
    def get_command(self) -> str | None:
        """Return the command to run to create the pipe."""
        if self.fd == subprocess.PIPE:
+           return self.name[1:]
        else:
            return None

So when doing Run(..., input=PIPE), the error 'int' object is not subscriptable is raised

Start at e3.os.process.Run and the File class, then reproduce the error with Run(..., input=PIPE). Verify that the input PIPE value no longer causes an integer-subscripting error and that the existing File handling remains consistent.