You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: jit_state.rb
    path of file: ./repos/ruby/lib/ruby_vm/rjit
    
    the code of the file until where you have to start completion: module RubyVM::RJIT
  class JITState < Struct.new(
    :iseq,                        # @param `RubyVM::RJIT::CPointer::Struct_rb_iseq_t`
    :pc,            
    
    def initialize(side_exit_for_pc: {}, record_boundary_patch_point: false, **) = super

    def insn
      Compiler.decode_insn(C.VALUE.new(pc).*)
    end

    def operand(index, signed: false, ruby: false)
      addr = pc + (index + 1) * Fiddle::SIZEOF_VOIDP
      value = Fiddle::Pointer.new(addr)[0, Fiddle::SIZEOF_VOIDP].unpack(signed ? 'q' : 'Q')[0]
      if ruby
        value = C.to_ruby(value)
      end
      value
    end