external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 27 Running External Programs 357 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 27 Running External Programs 357 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354 27 Running External Programs 357 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 27 Running External Programs 360 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358 27 Running External Programs 361 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 27 Running External Programs 360 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357 27 Running External Programs 360 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353 27 Running External Programs 356 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353 27 Running External Programs 356 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"

external packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353 27 Running External Programs 356 27.1 Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Declarations The :: operator can be used to attach type annotations to expressions and variables in programs. There are two primary reasons to do this: 1. As an assertion to help confirm that your program multiple dispatch ends up being a powerful and convenient paradigm for structuring and organizing programs. 1In C++ or Java, for example, in a method call like obj.meth(arg1,arg2), the object obj "receives"