parameters: (self, instr_name)
docstring: Check if the instrument is inelastic
docstring_summary: Check if the instrument is inelastic
docstring_tokens: Check if the instrument is inelastic
function: def is_inelastic(self, instr_name):
          """Check if the instrument is inelastic"""
          if instr_name in INELASTIC_INSTRUMENTS:
              return True
          else:
              return False
function_tokens: def is_inelastic ( self , instr_name ) : if instr_name in INELASTIC_INSTRUMENTS : return True else : return False