remove HamiltonLiquidHandler.get_ttti function

Author: rickwierenga

pylabrobot/liquid_handling/backends/hamilton/STAR_backend.py

@@ -1456,7 +1456,7 @@ async def pick_up_tips(
     tips = set(cast(HamiltonTip, tip_spot.get_tip()) for tip_spot in tip_spots)
     if len(tips) > 1:
       raise ValueError("Cannot mix tips with different tip types.")
-    ttti = (await self.get_ttti(list(tips)))[0]
+    ttti = await self.get_or_assign_tip_type_index(tips.pop())
 
     max_z = max(op.resource.get_location_wrt(self.deck).z + op.offset.z for op in ops)
     max_total_tip_length = max(op.tip.total_tip_length for op in ops)

pylabrobot/liquid_handling/backends/hamilton/base.py

@@ -473,15 +473,6 @@ def _get_hamilton_tip(self, tip_spots: List[TipSpot]) -> HamiltonTip:
       raise ValueError(f"Tip {tip} is not a HamiltonTip.")
     return tip
 
-  async def get_ttti(self, tips: List[HamiltonTip]) -> List[int]:
-    """Get tip type table index for a list of tips.
-
-    Ensure that for all non-None tips, they have the same tip type, and return the tip type table
-    index for that tip type.
-    """
-
-    return [await self.get_or_assign_tip_type_index(tip) for tip in tips]
-
   async def send_raw_command(
     self,
     command: str,

pylabrobot/liquid_handling/backends/hamilton/vantage_backend.py

@@ -485,7 +485,7 @@ async def pick_up_tips(
     x_positions, y_positions, tip_pattern = self._ops_to_fw_positions(ops, use_channels)
 
     tips = [cast(HamiltonTip, op.resource.get_tip()) for op in ops]
-    ttti = await self.get_ttti(tips)
+    ttti = [await self.get_or_assign_tip_type_index(tip) for tip in tips]
 
     max_z = max(op.resource.get_location_wrt(self.deck).z + op.offset.z for op in ops)
     max_total_tip_length = max(op.tip.total_tip_length for op in ops)