How to use the pydash.is_dict function in pydash

def flatten_dict(obj, delim='.'):
    '''Missing pydash method to flatten dict'''
    nobj = {}
    for key, val in obj.items():
        if ps.is_dict(val) and not ps.is_empty(val):
            strip = flatten_dict(val, delim)
            for k, v in strip.items():
                nobj[key + delim + k] = v
        elif ps.is_list(val) and not ps.is_empty(val) and ps.is_dict(val[0]):
            for idx, v in enumerate(val):
                nobj[key + delim + str(idx)] = v
                if ps.is_object(v):
                    nobj = flatten_dict(nobj, delim)
        else:
            nobj[key] = val
    return nobj

def flatten_dict(obj, delim='.'):
    '''Missing pydash method to flatten dict'''
    nobj = {}
    for key, val in obj.items():
        if ps.is_dict(val) and not ps.is_empty(val):
            strip = flatten_dict(val, delim)
            for k, v in strip.items():
                nobj[key + delim + k] = v
        elif ps.is_list(val) and not ps.is_empty(val) and ps.is_dict(val[0]):
            for idx, v in enumerate(val):
                nobj[key + delim + str(idx)] = v
                if ps.is_object(v):
                    nobj = flatten_dict(nobj, delim)
        else:
            nobj[key] = val
    return nobj

def self_desc(cls):
    '''Method to get self description, used at init.'''
    desc_list = [f'{get_class_name(cls)}:']
    for k, v in get_class_attr(cls).items():
        if k == 'spec':
            desc_v = v['name']
        elif ps.is_dict(v) or ps.is_dict(ps.head(v)):
            desc_v = pformat(v)
        else:
            desc_v = v
        desc_list.append(f'- {k} = {desc_v}')
    desc = '\n'.join(desc_list)
    return desc

def __init__(self, spec, aeb_space, global_nets=None):
        self.spec = spec
        self.aeb_space = aeb_space
        aeb_space.agent_space = self
        self.info_space = aeb_space.info_space
        self.aeb_shape = aeb_space.aeb_shape
        assert not ps.is_dict(global_nets), f'multi agent global_nets must be a list of dicts, got {global_nets}'
        assert ps.is_list(self.spec['agent'])
        self.agents = []
        for a in range(len(self.spec['agent'])):
            body_a = self.aeb_space.body_space.get(a=a)
            if global_nets is not None:
                agent_global_nets = global_nets[a]
            else:
                agent_global_nets = None
            agent = Agent(self.spec, self.info_space, body=body_a, a=a, agent_space=self, global_nets=agent_global_nets)
            self.agents.append(agent)
        logger.info(util.self_desc(self))

def flatten_dict(obj, delim='.'):
    '''Missing pydash method to flatten dict'''
    nobj = {}
    for key, val in obj.items():
        if ps.is_dict(val) and not ps.is_empty(val):
            strip = flatten_dict(val, delim)
            for k, v in strip.items():
                nobj[key + delim + k] = v
        elif ps.is_list(val) and not ps.is_empty(val) and ps.is_dict(val[0]):
            for idx, v in enumerate(val):
                nobj[key + delim + str(idx)] = v
                if ps.is_object(v):
                    nobj = flatten_dict(nobj, delim)
        else:
            nobj[key] = val
    return nobj

def flatten_dict(obj, delim='.'):
    '''Missing pydash method to flatten dict'''
    nobj = {}
    for key, val in obj.items():
        if ps.is_dict(val) and not ps.is_empty(val):
            strip = flatten_dict(val, delim)
            for k, v in strip.items():
                nobj[key + delim + k] = v
        elif ps.is_list(val) and not ps.is_empty(val) and ps.is_dict(val[0]):
            for idx, v in enumerate(val):
                nobj[key + delim + str(idx)] = v
                if ps.is_object(v):
                    nobj = flatten_dict(nobj, delim)
        else:
            nobj[key] = val
    return nobj

def self_desc(cls):
    '''Method to get self description, used at init.'''
    desc_list = [f'{get_class_name(cls)}:']
    for k, v in get_class_attr(cls).items():
        if k == 'spec':
            desc_v = v['name']
        elif ps.is_dict(v) or ps.is_dict(ps.head(v)):
            desc_v = pformat(v)
        else:
            desc_v = v
        desc_list.append(f'- {k} = {desc_v}')
    desc = '\n'.join(desc_list)
    return desc