code: def mysine(x, amp, freq, shift):
      return amp * np.sin(x * freq + shift)
  
imports: import os
  import sys
  import matplotlib.pyplot
  import numpy
  from lmfit.model import load_model
label_desc: Use image node_id 1 for calling a global function with example usage: mysine(x, amp, freq, shift) and returns: unknown