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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove_assigned_resource(self, resource_type: str, value: Union[str, int, float, bool] = None, parameters: dict = None):
 """Remove assigned resources from the processing block. All matching resources will be removed. If only type is specified all resources of the specified type will be removed. If value and/or parameters are specified they will be used for matching the resource to remove. Args: resource_type (str):
 Resource type value: Resource value parameters (dict, optional):
 Parameters specific to the resource """

        resources = DB.get_hash_value(self.key, 'resources_assigned')
        resources = ast.literal_eval(resources)
        new_resources = []
        for resource in resources:
            if resource['type'] != resource_type:
                new_resources.append(resource)
            elif value is not None and resource['value'] != value:
                new_resources.append(resource)
            elif parameters is not None and \
                    resource['parameters'] != parameters:
                new_resources.append(resource)
        DB.set_hash_value(self.key, 'resources_assigned', new_resources)