parameters: (self, line_id)
return_statement: return line in self.creates
docstring: Returns True if a line with line_id is a creatable of
          this unit.
docstring_summary: Returns True if a line with line_id is a creatable of
          this unit.
docstring_tokens: Returns True if a line with line_id is a creatable of this unit .
function: def contains_creatable(self, line_id):
          """
          Returns True if a line with line_id is a creatable of
          this unit.
          """
          if isinstance(self, GenieUnitLineGroup):
              line = self.data.building_lines[line_id]
  
          elif isinstance(self, GenieBuildingLineGroup):
              line = self.data.unit_lines[line_id]
  
          return line in self.creates
function_tokens: def contains_creatable ( self , line_id ) : if isinstance ( self , GenieUnitLineGroup ) : line = self . data . building_lines [ line_id ] elif isinstance ( self , GenieBuildingLineGroup ) : line = self . data . unit_lines [ line_id ] return line in self . creates