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The TypeScript types needed for the pipe() function depend on the arguments and return types of the functions being piped together. Generally, the pipe() function takes one or more functions as arguments and returns a function that takes an input and applies each function in sequence, passing the output of one function as the input to the next.
To ensure type safety, the input and output types of each function in the pipe() chain should be compatible with the input and output types of the overall pipe() function. For example, if the first function in the pipe() chain takes a string and returns a number, the overall pipe() function should take a string and return a number.
In general, the TypeScript types for pipe() might include:
- A generic type parameter T for the input type of the overall pipe() function
- One or more type parameters for the input and output types of each individual function in the pipe() chain, depending on the specific signatures of those functions
- A return type that matches the output type of the final function in the pipe() chain.