def _get_parameter_signatures(self):
        """Get the signature of the parameters for the CL function declaration.

        This should return the list of signatures of the parameters for use inside the function signature.

        Returns:
            list: the signatures of the parameters for the use in the CL code.
        """
        declarations = []
        for p in self.get_parameters():
            new_p = p.get_renamed(p.name.replace('.', '_'))
            declarations.append(new_p.get_declaration())
        return declarations