bridgepoint/oal.py
def p_port_invocation_assignment_statement(self, p):
        '''statement : SEND variable_access EQUAL implicit_invocation'''
        p[4].__class__ = PortInvocationNode
        p[0] = AssignmentNode(variable_access=p[2],
                              expression=p[4])
def p_port_invocation_assignment_statement(self, p):
        '''statement : SEND variable_access EQUAL implicit_invocation'''
        p[4].__class__ = PortInvocationNode
        p[0] = AssignmentNode(variable_access=p[2],
                              expression=p[4])
statement : SEND variable_access EQUAL implicit_invocation