Function Calling with Kotlin Functions about spring-ai HOT 1 OPEN

I reproduced the problem. The cause is that when inputType is not specified, the resolveInputType function uses reflection to get the generic type. However, when using a function with a trailing lambda, it is not possible to obtain the generic type declaration.

public FunctionCallbackWrapper<I, O> build() {
// ...
            if (this.inputType == null) {
                this.inputType = FunctionCallbackWrapper.resolveInputType(this.function);
            }
// ...
}

Currently, the issue can be resolved through the aforementioned method, or by passing in a specific implementation class. Alternatively, it could be addressed by adding support for reified generic function extensions in the library:

inline fun<reified I,O> functionCallbackWrapperBuild(
	noinline function:(I)->O
): FunctionCallbackWrapper.Builder<I,O> =
	FunctionCallbackWrapper.builder(function).withInputType(I::class.java)

or perhaps by import other reflection packages to obtain the Metadata info?

from spring-ai.