Expr.Lambda(parameter, body)
Builds an expression that represents the construction of an F# function value
parameter : Var
The parameter to the function.
body : Expr
The body of the function.
Returns: Expr
The resulting expression.
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Expr.Coerce(source, target)
Builds an expression that represents the coercion of an expression to a type
source : Expr
The expression to coerce.
target : Type
The target type.
Returns: Expr
The resulting expression.