fix merge

src/braket/parametric/free_parameter_expression.py

@@ -41,10 +41,6 @@ def __init__(self, expression: Union[FreeParameterExpression, Number, sympy.Expr
 
         Args:
             expression (Union[FreeParameterExpression, Number, Expr, str]): The expression to use.
-            _type (Optional[ClassicalType]): The OpenQASM3 type associated with the expression.
-                Subtypes of openqasm3.ast.ClassicalType are used to specify how to express the
-                expression in the OpenQASM3 IR. Any type other than DurationType is considered
-                as FloatType.
 
         Raises:
             NotImplementedError: Raised if the expression is not of type
@@ -61,7 +57,6 @@ def __init__(self, expression: Union[FreeParameterExpression, Number, sympy.Expr
             ast.Pow: self.__pow__,
             ast.USub: self.__neg__,
         }
-        self._type = _type if _type is not None else FloatType()
         if isinstance(expression, FreeParameterExpression):
             self._expression = expression.expression
         elif isinstance(expression, (Number, sympy.Expr)):
@@ -70,7 +65,6 @@ def __init__(self, expression: Union[FreeParameterExpression, Number, sympy.Expr
             self._expression = self._parse_string_expression(expression).expression
         else:
             raise NotImplementedError
-        self._validate_type()
 
     @property
     def expression(self) -> Union[Number, sympy.Expr]:
@@ -109,13 +103,6 @@ def subs(
         else:
             return FreeParameterExpression(subbed_expr)
 
-    def _validate_type(self) -> None:
-        if not isinstance(self._type, (FloatType, DurationType)):
-            raise TypeError(
-                "FreeParameterExpression must be of type openqasm3.ast.FloatType "
-                "or openqasm3.ast.DurationType"
-            )
-
     def _parse_string_expression(self, expression: str) -> FreeParameterExpression:
         return self._eval_operation(ast.parse(expression, mode="eval").body)
 

src/braket/pulse/ast/free_parameters.py

@@ -37,7 +37,7 @@ def visit_Identifier(
         using the given parameter values.
 
         Args:
-            identifier (_FreeParameterExpressionIdentifier): The identifier.
+            identifier (Identifier): The identifier.
 
         Returns:
             Union[Identifier, FloatLiteral]: The transformed identifier.

src/braket/pulse/waveforms.py

@@ -24,8 +24,16 @@
 
 import numpy as np
 import openpulse.ast as ast
-from oqpy import WaveformVar, bool_, complex128, declare_waveform_generator, duration, float64
-from oqpy.base import OQPyExpression
+from oqpy import (
+    WaveformVar,
+    bool_,
+    complex128,
+    convert_float_to_duration,
+    declare_waveform_generator,
+    duration,
+    float64,
+)
+from oqpy.base import OQPyExpression, to_ast
 
 from braket.parametric.free_parameter import FreeParameter
 from braket.parametric.free_parameter_expression import (
@@ -73,8 +81,16 @@ def _modify_oqpy_waveform_var(
         self, key: str, value: Any, type_: ast.ClassicalType = float64
     ) -> None:
         if self._pulse_sequence is not None:
+            self._pulse_sequence._register_free_parameters(value)
             self._pulse_sequence._program.undeclared_vars[self.id].init_expression.args[key] = (
-                self._pulse_sequence._format_parameter_ast(value, type_)
+                to_ast(
+                    self._pulse_sequence._program,
+                    (
+                        convert_float_to_duration(value)
+                        if isinstance(type_, ast.DurationType)
+                        else value
+                    ),
+                )
             )
 
     @abstractmethod