What potential bottlenecks in the Pipeline can be eliminated by defining an interface?

In Go, defining an interface in a Pipeline helps eliminate bottlenecks associated with tight coupling of components and the complexity of replacing or testing individual stages. Interfaces allow:

• Providing abstraction: pipeline stages can work with any types that implement the required interface, simplifying replacement and extension.
• Simplifying testing: mocks or stubs implementing the interface can be used without changing the pipeline code.
• Increasing flexibility and reusability: different implementations of the interface can be used depending on the context.

For example, if you have an interface Processor with a method Process(data Data) Data, different pipeline stages can accept and return data through this interface, making it easy to change processing logic without rewriting the entire pipeline.

 type Processor interface {
    Process(data Data) Data
 }

 func RunPipeline(p Processor, input Data) Data {
    return p.Process(input)
 }

Thus, interfaces eliminate bottlenecks related to tight coupling and the complexity of modifying the pipeline.