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interface environment {
/// Get the POSIX-style environment variables.
///
/// Each environment variable is provided as a pair of string variable names
/// and string value.
///
/// Morally, these are a value import, but until value imports are available
/// in the component model, this import function should return the same
/// values each time it is called.
get-environment: func() -> list<tuple<string, string>>;
/// Get the POSIX-style arguments to the program.
get-arguments: func() -> list<string>;
/// Return a path that programs should use as their initial current working
/// directory, interpreting `.` as shorthand for this.
initial-cwd: func() -> option<string>;
}